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sectional anatomy final
The _______ plane divides the body into right and left portions. (use all lower case text) - correct answer sagittal Which body cavity normally contains the urinary bladder? - correct answer pelvic cavity What is the specific serous membrane that covers the lungs? - correct answer visceral pleura What is the name of the regions that are lateral and superior to the lumbar regions?
- correct answer right and left hypochondriac A frontal plane is a horizontal plane. - correct answer False One of the subdivisions of the ventral body cavity is the pelvic cavity. - correct answer True The lungs are located in the mediastinum of the thoracic cavity. - correct answer False The parietal pleura is a serous membrane. - correct answer True A midline sagittal plane is a: - correct answer midsagittal plane A plane that intersects the heart but does not intersect the lungs is a: - correct answer midsagittal plane A plane that intersects the orbits of both eyes and the brain but does not pass through the tongue is a: - correct answer transverse plane
In anatomic position, the: - correct answer Antecubital region is on the ventral surface A large portion of the liver is in the right hypochondriac region of the abdominal cavity. This location also places it in the: - correct answer Right upper quadrant The horizontal and vertical planes that are used to divide the abdominopelvic cavity into four quadrants intersect in the: - correct answer Umbilical region A plane through the cranium that is posterior to the face and anterior to the occipital region is a: - correct answer frontal plane A certain plane intersects the right lung but does not intersect the heart or the left lung. It is a: - correct answer parasagittal plane When studying transverse sections of the body, it is assumed, unless otherwise stated, that the subject is: - correct answer in a supine position Trapezius muscle - correct answer Superficial back muscle Subscapularis muscle - correct answer one of the rotator cuffs muscles Pectinate muscle - correct answer muscular rides in the right atrium Left subclavian artery - correct answer most posterior branch of the aortic arch Azygos vein - correct answer vessels that drain the thoracic wall What is the name of the structure that is immediately posterior to the trachea? (must use correct spelling; all lower case) - correct answer esophagus
ribs (the first three pairs of false ribs) is attached to the cartilage of the preceding rib rather than directly to the sternum. These are called vertebrochondral ribs. The last two pairs of false ribs are vertebral ribs, or floating, ribs, because they have no anterior attachment to the sternum. The skeleton of the thorax includes all of the following structures except the: - correct answer clavicle The skeleton of the thorax is formed by the sternum anteriorly, the twelve thoracic vertebrae posteriorly, and the ribs with their costal cartilages laterally. The clavicle is part of the pectoral girdle, not the thorax. Each of the following statements about a pleural cavity is correct except: - correct answer Air moves freely in and out of it during respiration (The pleural cavities are closed cavities and the air does not freely move in and out.) All of the following statements about the left lung are true except that: - correct answer It has a greater volume than the right lung Midsagittal sections through the thorax typically show the: - correct answer Left brachiocephalic vein anterior to the ascending aorta Sagittal sections through the right atrium typically also show the: - correct answer The right pulmonary artery anterior to the right bronchus The esophagus: - correct answer Begins as a continuation of the hypopharynx at the C6 vertebral level The trachea: - correct answers anterior to the esophagus and a little to the right of midline The superior vena cava: - correct answers formed by the right and left brachiocephalic veins Which of the following relationships of the right pulmonary artery is true?
It courses to the right, posterior to the right main stem bronchus Correct! It courses to the right, posterior to the ascending aorta The right pulmonary artery courses to the right, posterior to the ascending aorta; it is posterior to the superior vena cava, superior to the left atrium, and anterior to the right bronchus. It courses to the right, anterior to the superior vena cava It courses to the right, inferior to the left atrium - correct answer courses to the right, posterior to the ascending aorta The pulmonary semilunar valve is: - correct answer Most commonly situated at the level of the left third sternocostal junction Which of the following structures is associated with the ventricular walls of the heart? - correct answer Trabeculae carneae The heart: - correct answer primarily on the left side Concerning the bronchi: - correct answer Each secondary bronchus corresponds to a lobe of the lung There are four muscles associated with the pectoral region on the anterior thoracic wall. One of these muscles is the: - correct answer Serratus anterior
Rectus abdominis muscle - correct answer anterior abdominal muscle that has vertical fibers Transverse abdominis muscle - correct answer Innermost (deepest) muscle of the anterolateral abdominal muscle Light-colored line in the anterior abdominal wall that is formed by the fusion of sheets of tendon. (answer using all lower case and correct spelling). - correct answer linea alba Horizontal plane that is halfway between the xiphoid and the umbilicus. (answer using all lower case and correct spelling) - correct answer transpyloric plane Blood vessel that supplies blood to the pancreas. (answer using all lower case letters and correct spelling). - correct answer splenic artery Vein that transports nutrient-rich blood from the small intestine to the liver. (answer using all lower case letters and correct spelling). - correct answer hepatic portal vein Specific portion of the liver that is between the inferior vena cava and the ligamentum venosum. (answer using all lower case letters and correct spelling - correct answer caudate lobe Peritoneal ligament that attaches the liver to the anterior abdominal wall. (answer using all lower case letters and correct spelling) - correct answer falciform ligament The blood vessel that passes horizontally anterior to the descending aorta and posterior to the superior mesenteric artery. (answer using all lower case letters and correct spelling) - correct answer left renal vein Most anterior portion of the colon. (answer using all lower case letters and correct spelling) - correct answer transverse colon
The middle sacral artery is an unpaired parietal branch of the abdominal aorta. - correct answer True The two common iliac veins form the inferior vena cava at a level that is inferior to the bifurcation of the aorta. - correct answer true The quadrate lobe of the liver is more posterior than the caudate lobe. - correct answer False The right renal artery is longer than the left renal artery. - correct answer true The most superior portion of the pancreas is the tail. - correct answer true In a portal triad, hepatic arteries are to the right of the hepatic ducts. - correct answer false Which of the following is the innermost of the flat muscles of the abdomen? - correct answer transversus abdominis Which of the following muscles does not contribute to the formation of the posterior abdominal wall? - correct answer transverse abdominis Which statement may be correctly applied to the omental bursa? - correct answer is a compartment of the peritoneal cavity located between the stomach and the posterior abdominal wall. Which of the following statements about the peritoneal cavity is false? - correct answer females, the cavity is completely enclosed. Which of the following structures normally is retroperitoneal? - correct answer pancreas The celiac trunk: - correct answer superior to the renal arteries on the abdominal aorta
Which of the following statements about pelvic blood vessels is false? - correct answerThe external iliac artery is a short vessel that branches profusely When studying serial sagittal sections from the right side to the left, which of the following structures do you typically see first? - correct answerascending colon Which one of the following is true about the male urethra? - correct answerThe ducts of the bulbourethral glands open into the proximal region of the spongy urethra Which of the following statements about the male reproductive system is false? - correct answerThe ejaculatory duct empties into the middle portion of the urethra Which of the following statements about the female reproductive organs is false? - correct answerThe fundus is the lower one-third of the uterus Which of the following statements about the muscles of the perineum is false? - correct answerThe ischiocavernosus muscle is in the median line of the urogenital region Place the following female pelvic structures in proper sequence from anterior to posterior: (1) posterior fornix; (2) urinary bladder; (3) rectum; (4) cervix; (5) pubic bone. - correct answer5, 2, 4, 1, 3 The pubic bone is most anterior, followed by the urinary bladder, cervix, posterior fornix, and rectum. Concerning the bones of the pelvis - correct answerThe symphysis pubis is the joint between the two os coxae Which one of the following statements about the pectineus muscle is true? - correct answerIt is medial to the iliopsoas muscle Concerning the muscles of the pelvis: - correct answerThe pelvic diaphragm forms a muscular pelvic floor
Concerning the muscles of the true pelvis: - correct answerThe pelvic diaphragm forms a muscular pelvic floor The largest muscle of the pelvic diaphragm is the: - correct answerLevator ani muscle Concerning the arteries of the pelvis: - correct answerThe abdominal aorta divides into the right and left common iliac arteries at L Concerning the vasculature of the pelvis: - correct answerBlood is drained from the pelvis by the internal iliac veins The pudendal nerve: - correct answerSupplies the perineum and external genitalia The urinary bladder: - correct answerIs held in place by peritoneal ligaments and is relatively movable, except for the inferior neck region where it is firmly anchored In transverse sections through the sacroiliac joint: - correct answerThe iliacus muscle lines the iliac fossa and the gluteal muscles originate on the lateral surface of the ilium In transverse sections through the sacroiliac joint in the male pelvis: - correct answerThe lower portion of the ascending colon and cecum are in the right iliac fossa In transverse sections through the lower part of the sacrum: - correct answerThe obturator internus muscle is medial to the ilium In transverse sections through the prostate gland: - correct answerThe pelvic walls are lined with the obturator internus muscle Transverse sections through the seminal vesicles reveal: - correct answerThe seminal vesicles posterior to the urinary bladder
What foramen of the skull transmits the vertebral arteries and accessory nerves? - correct answerforamen magnum The thalamus and hypothalamus are a part of the: - correct answerdiencephalon The corpora quadrigemina are located in the: - correct answermidbrain The cerebral aqueduct is between the: - correct answerThird and fourth ventricles Which of the following is not a location of cerebrospinal fluid? - correct answerSubdural space Which of the following is not associated with dura mater? - correct answerCerebrospinal fluid Concerning the muscles of facial expression: - correct answerThey are innervated by cranial nerve VII Each of the following statements concerning the tentorium cerebelli is correct except that: - correct answerIt is located between the two hemispheres of the cerebellum The falx cerebri is located in the: - correct answerLongitudinal fissure The layer of meninges in direct contact with the cerebral cortex is the: - correct answerpia mater Which of the following vessels does not contribute to the vascular supply to the brain? - correct answerExternal carotid artery Each of the following statements concerning the vertebral artery is correct except that it: - correct answerAscends through the transverse foramina of C7 to C vertebrae
Which of the following arteries does not participate in the formation of the circulus arteriosus cerebri (circle of Willis)? - correct answerVertebral arteries The sinus that occupies the inferior free margin of the falx cerebri is the: - correct answerInferior sagittal sinus Which of the following venous sinuses of the dura mater drains the cavernous sinuses directly into the internal jugular veins? - correct answerInferior petrosal sinus In transverse sections through the pons: - correct answerThe basilar artery is in the pontine cistern Regarding the lobes of the brain: - correct answerThe occipital lobe is the most posterior lobe of the cerebrum The cerebellum: - correct answerHas two hemispheres that are connected by a centrally located vermis In transverse sections through the midbrain: - correct answerThe superior cistern contains the great cerebral vein In transverse sections through the medulla oblongata - correct answerThe temporalis muscle is medial to the zygomatic arch Which one of the following associations is false? - correct answerCommon carotid artery—interpeduncular cistern In transverse sections through the basal ganglia: - correct answerThe third ventricle is a midline structure The longitudinal cerebral fissure: - correct answerExtends only as far as the corpus callosum in the parietal region
Which of the following statements about the larynx is false? - correct answerThe rima glottidis is the opening or slit between the vestibular folds or true vocal folds of the larynx What vein joins with the subclavian vein to form the brachiocephalic vein? - correct answerInternal jugular vein The carotid sheath encloses the: - correct answerVagus nerve, common carotid artery, and internal jugular vein Concerning blood vessels in the neck: - correct answerAt higher levels—at C1, for example—the external carotid artery is lateral to the internal carotid artery Concerning blood vessels in the neck: - correct answerThe common carotid artery bifurcates at the level of the disc between C3 and C Transverse sections through the third cervical vertebrae, passing through the mandible and muscle of the tongue, usually show - correct answerThe external jugular vein related to the sternocleidomastoid muscle In transverse sections through the neck at level C1: - correct answerThe styloid process of the temporal bone is medial to the parotid gland In transverse sections through the larynx: - correct answerThe trapezius muscle is posterior (or superficial) to the levator scapulae and erector spinae muscles In transverse sections through the thoracic inlet: - correct answerThe most superficial muscle in the back is the trapezius Midsagittal sections through the neck show - correct answerThe vallecula between the tongue and the epiglottis Transverse sections through the neck at level C1 show: - correct answerThe dens or odontoid process of C
Transverse sections through the neck at level C3 show: - correct answerThe pharyngeal constrictor muscle anterior to the prevertebral muscle Transverse sections through the larynx show: - correct answerThe vagus nerve slightly posterior to the internal jugular vein Transverse sections through the neck at the level of the thoracic inlet are likely to show: - correct answerThe sternocleidomastoid muscle anterior to the lobes of the thyroid gland Concerning the trachea: - correct answerThe posterior region of the trachea is related to the esophagus Which of the following statements about muscles associated with the hyoid bone is false? - correct answerThe suprahyoid muscles are located in the posterior triangle of the neck Muscles extend from the trunk to the humerus adduct and medially rotate the humerus. - correct answerTrue The radius, the ulna, and the flexor retinaculum form a partition that separates the muscles of the forearm into anterior and posterior compartments. - correct answerfalse The glenohumeral ligament reinforces the superior portion of the shoulder joint capsule. - correct answerfalse In sagittal sections through the medial portion of the elbow, the biceps brachii muscle is superficial to the brachialis muscle. - correct answertrue In transverse sections through the carpal tunnel, the ulnar artery is anterior and medial to the radial artery. - correct answertrue
All of the following statements about transverse sections of the proximal arm are true except: - correct answerThe posterior compartment contains the lateral and long heads of the biceps brachii muscle In sagittal sections through the humeroulnar articulation - correct answerThe triceps brachii is on the posterior surface of the humerus and the brachialis muscle is on the anterior surface Transverse sections through the glenoid fossa show: - correct answerThe glenoid labrum at the edges of the glenoid fossa In transverse sections through the shoulder, the superficial muscle on the lateral side of the humerus is the: - correct answerDeltoid muscle In transverse sections through the proximal forearm: - correct answerThe ulnar artery and ulnar nerve are located within the anterior muscle compartment In transverse sections through the axilla, the most lateral boundary of the axilla is the: - correct answerHumerus Transverse sections through the proximal arm show the: - correct answerBrachial artery and vein adjacent to the medial head of the triceps brachii muscle Transverse sections through the distal arm show the: - correct answerRadial nerve between the brachialis muscle and the lateral head of the triceps brachii muscle A transverse section of the cubital fossa shows: - correct answerThe brachialis muscle in the floor of the fossa Transverse sections through the radioulnar articulation show the: - correct answerBrachialis muscle close to its insertion on the ulna The following question is an extra credit question worth 5 points if answered correctly. Points for this question will be awarded manually by the instructor.
A student is studying for a Sectional Anatomy test. The student places the elbow on the desk and rests the forehead in the palm of the hand. The action at the elbow is accomplished by the: - correct answerBrachialis muscle What is the most lateral muscle of the gluteal region? - correct answerTensor fasciae latae muscle The piriformis muscle is: - correct answerAssociated with the sciatic nerve in the greater sciatic notch Concerning the muscles of the lower extremities - correct answerIn general, the muscles in the medial compartment of the thigh are adductors In sagittal sections through the acetabulum, two muscles in the gluteal region that are inferior to the piriformis muscle are the: - correct answerGemellus and obturator internus Concerning the muscles located in the thigh - correct answerThe sartorius is a long strap-like muscle that is superficial to the other anterior thigh muscles Which one of the following muscles in the posterior compartment of the thigh is the most lateral as it descends to insert on the upper part of the fibula? - correct answerBiceps femoris muscle In transverse sections through the proximal thigh, which of the following muscles is anterior to the femur? - correct answerSartorius muscle The popliteal fossa is a diamond-shaped, fat-filled region behind the knee joint. Which of the following muscles are found in that area? (1) tibialis posterior; (2) hamstrings; (3) soleus; (4) gastrocnemius; (5) plantaris - correct answer2, 4, and 5 Anteriorly, the quadriceps femoris tendon continues inferiorly to reinforce the fibrous capsule of the knee. The portion that continues inferiorly and reinforces the joint capsule is the: - correct answerPatellar ligament
