physiology 3- review

Question 0

sense organs

Answer 0

eyes, skin, ears, nose, and tongue

Question 1

nervous system

Answer 1

main function to recieve and respond to stimuli

Question 2

the nerve

Answer 2

\ an organ containing a bundle of nerve cells called neurons

Question 3

neurons

Answer 3

carry electrical messages called impulses throughout the body
\because they never touch chemical signatures clled neurotransmitters must travel through the synapse between 2 neurons

Question 4

parts of neuron

Answer 4

dendrite- projections tha bring impulses into the neuron to the cell body
axon- long projection that carries impulses away from the cell body

Question 5

types of neurons

Answer 5

sensory- carries impulses from sense organs to spinal cord and brain
⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️
interneuron- processes spinal impulses in the brain and spinal cord
connects sensory and motor neurons
⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️
motor- carries impulse from the brain and spinal cord to muscles and
glands (effectors)

Question 6

reflexes

Answer 6

an involuntary response that is processed in the spinal cord not the brain

reflexes protect the body before the brain knows what is going on

Question 7

central nervous system

Answer 7

brain and spinal cord

Question 8

brain

Answer 8

\cerebrum
\cerebellum
\medulla oblongata
\ spinal cord

Question 9

the nervous system

Answer 9

A. divided into
-central nervvous system (interneurons)
- peripheral nervous system
                       |
B.consists of
- sensory neurons
- motor neurons
            |
C. that make up
- the somatic nervous system
- the autonomic nervous system
                          |
D. WHich is divided into
-the sympathetic nervous system
-the Para sympathetic nervous system

Question 10

locomotion

Answer 10

the ability to move from place to place
advantages
- increased chance to get food
- avoid predators
- seek shelter
- move away from toxic wastes
-find a mate

Question 11

endoskeleton

Answer 11

internal set of bones

Question 12

functions of the bones

Answer 12

• support and protect
• anchorage site for muscle
• leverage for body movement
• productio of blood cells in marrow

Question 13

cartilage

Answer 13

• flexible, fibrous, elastic connective tissue
• pliable (bendable) support
• flexibilty of joints
• cushioning
  found at ends of ribs betwen vertebrae ends of bones, nose, ears, and trachea

Question 14

muscles

Answer 14

can contract and relax

Question 15

smooth muscle

Answer 15

\involuntary

\foundin hollow organs

Question 16

cardiac muscle

Answer 16

striated

\involuntary heart muscle

Question 17

skeletal muscle

Answer 17

\move bones

\voluntary

Question 18

extensors

Answer 18

straighten joints

Question 19

flexors

Answer 19

bend joints

Question 20

tendons

Answer 20

\tough inelastic fibrous cord
\connect muscle to bones
\white shiny at end of muscle

Question 21

ligaments

Answer 21

\\tough elastic connective tissue
\\connect bone to bone at moveable joints
ex.
elbow
finger
knee