Functional Anatomy of Domestic Animal - Solved Quiz 4 | ANFS 140, Quizzes of Animal Biology

Download Functional Anatomy of Domestic Animal - Solved Quiz 4 | ANFS 140 and more Quizzes Animal Biology in PDF only on Docsity! ANFS 140: Functional Anatomy of Domestic Animals. Quiz four. Please select the correct answer for each question. There is only one correct answer. Figure 1 depicts a nerve that you might have dissected in the lab. This nerve has several components that were discussed in lab and lecture. 1. This nerve must be a great example of what one would find in the ________________. a. dorsal root b. ventral root c. a spinal nerve lying outside of the intervertebral foramen d. a section of the spinal chord grey matter 2. The outermost wrap (letter F) of this particular nerve consist of fibrous connective tissue and is known as the a. myelin sheath b. Schwann sheath c. perineurium d. endoneurium e. epineurium 3. Neurons are wrapped together as groups of neurons within the grossly visible nerve itself. These bundles of neurons are held together by a fibrous tissue wrap (letter A) known as the a. myelin sheath b. Schwann sheath c. perineurium d. endoneurium e. epineurium 4. Individual neurons are surrounded by a thin coating of fibrous connective tissue that holds neurons tightly to one another. The fibrous tissue fibers in this tissue (letter E) lie on top of the neurons with their wraps and is the a. myelin sheath b. Schwann sheath c. perineurium d. endoneurium e. epineurium 5. Most sensory and motor neurons are covered by many layers of concentrically arranged wraps of this cell. The wraps are depicted as letter B and the cell in question is the ______________________cell. a. Schwann b. fibroblast c. perineuron d. myelin cell 6. Altogether the concentric wraps of the cell named above coat the neuron with a sheath. This sheath is known as the __________________ sheath. a. satellite b. perineurium c. endoneurium d. myelin e. epineurium 7. The neuronal structure that actually exists in these nerves is depicted as letter C. This neuronal structure has to be the ____________ of the neuron. a. dendrite b. axon 8. The two neurons are labeled as motor and sensory neurons. The sensory neuron could be a neuron of the _______________________ system (s). a. somatic, afferent nervous b. somatic efferent or visceral efferent nervous c. visceral, afferent nervous d. visceral, efferent nervous e. somatic afferent or the visceral afferent nervous 9. The motor neuron could be a neuron from the _______________________ system (s). a. somatic, afferent nervous b. somatic efferent or visceral efferent nervous c. visceral, afferent nervous d. visceral, efferent nervous e. somatic afferent or the visceral afferent nervous 10. The letter G depicts a ridge between two cells that wrap themselves around the neuron in the nerve. This ridge actually forms a gap between the two cells wrapped around the neuron. This gap is called the ____________________. a. synaptic membrane b. synaptic space c. node of Ranvier d. node of Schwann d. has a very short axon that projects from the dorsal grey horn to the ventral grey horn of the spinal chord 22. Axons of the visceral efferent nervous system are always said to be “unmeyelinated”. This means they _________________. a. have axons that are engulfed or buried in the Schwann cell cytoplasm but do not have Schwann cells wrapped around the axon in layer after layer of cell wrapping. b. have axons lacking any Schwann cells and are therefore completely unmyelinated c. have Schwann cells wrapped around the dendrites but not the axon d. have neuronal bodies but never axons or dendrites wrapped in Schwann cell layers 23. Motor end plates are not a feature of the _______________. a. somatic efferent nervous system b. visceral efferent system 24. Which myofiber(s) never have direct contact with neuronal synaptic boutons? a. cardiac and smooth muscle b. smooth muscle only c. skeletal muscle only d. cardiac muscle only e. skeletal and cardiac muscle 25. The spinal chord is located inside the __________________ of the vertebral column. a. vertebral bodies b. vertebral canals c. inter vertebral canal d. intervertebral body Figure 1. Peripheral nerve 14. F Motor nerve B C A E G