BODY
SYSTEMS
UNIT
ANCHOR CHARTS:
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TISSUES IN THE HUMAN BODY. Tissue. Function. Example. Muscle makes parts of the body move by contracting or shortening arm muscles. Nervous.
Typology: Exams
2022/2023
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BODY
SYSTEMS
UNIT
ANCHOR CHARTS:
LEVELS OF ORGANIZATION
Cells
Tissues
Organs
Organ Systems
Body
smallest unit
largest unit
MOVABLE JOINTS
Joint Kind Of Motion Where Its Found In The Body
Hinge
Allows forward or
backward motion
knees
elbows
Ball-and-
socket
Allows the bone to
swing in a circle
shoulders
hips
Pivot
Allows one bone to
rotate around another
neck
Gliding
Allows one bone to
slide over another
wrists
ankles
TYPES OF MUSCLE TISSUE
3 MAIN FUNCTIONS OF DIGESTIVE SYSTEM
Breaks down food into molecules the body
can use.
Molecules are absorbed into the blood and
carried throughout the body
(^3) Removes waste from the body
FINAL DIGESTION/ADSOPTION
Small Intestine
- where almost all chemical digestion and adsorption of
nutrients take place
Liver/
Gallbladder
- Produces Bile
- Bile breaks down fat particles
- Gallbladder stores bile
Pancreas • Produces enzymes that break down starches, proteins, fats
Large Intestine • Removes water
Rectum • Removes waste
NERVOUS SYSTEM MAIN FUNCTIONS
Receives info about what is happening
both outside and inside your body
Directs the way your body responds to
information
(^3) Helps maintain homeostasis
NERVOUS SYSTEM: 2 DIVISIONS
Type Description
Central
Nervous
System
(CNS)
- Includes brain and spinal cord
- Cerebrum = inputs, left/right, right/left
- cerebellum = actions, balance
- Brain stem = involuntary activites
Peripheral
Nervous
System (PNS)
- All other nerves located in the body
- Somatic nervous systems controls voluntary
actions
- Autonomic nervous systems controls
involuntary actions
TYPES OF NEURONS
Type Type
Sensory
Neurons
Picks up stimuli from the internal or external
environment and converts each stimulus into
a nerve impulse
Interneurons
Carries the nerve impulses from one neuron
to another.
Motor
Neurons
Sends an impulse to a muscle or gland; then
the muscle/gland reacts in response.
dendrites
nucleus
axon synapse
LAYERS OF THE SKIN
pore
dermis
follicle
epidermis
IMMUNE SYSTEM: 3 LINES OF DEFENSE
Barriers to
Pathogens
Skin, breathing passages, mouth, stomach
function as barriers.
Inflammatory
Response to
Pathogens
White blood cells leak from blood vessels into
tissues and fight pathogens.
Distinguish
between
Pathogens