A&P Exam 3 (ch 11)

Question 1

What is the typical resting membrane potential for a neuron?

Answer 1

-70 millivolts (mV)

Question 2

Whats the structure of the Nervous system?

Answer 2

CNS (central nervous system)
- Brain
- Spinal Cord

PNS(peripheral nervous system)
-Cranial nerves
Spinal nerves and their branches

Question 3

Types of sensory input?

Answer 3

sight,smell, hearing, taste, and touch

Question 4

Integration in CNS?

Answer 4

involves processing of info and is carried out by the CNS, which consists of the brain and spinal cord?

Question 5

motor output?

Answer 5

an action performed by the activation of motor units in skeletal muscles under the control of signaling from motor neurons.

Question 6

Peripheral nervous system(PNS)?

Answer 6

Cranial and spinal nerves link CNS and rest of the body; perform motor and sensory functions

Question 7

sensory?

Answer 7

“sensing” a stimulus

Question 8

motor?

Answer 8

command (movement or other effects)

Question 9

afferent?

Answer 9

conducting the message TOWARDS the center(CNS)

Question 10

efferent?

Answer 10

conducting the message FROM the center (CNS)

Question 11

CNS functions?

Answer 11

Brain and spinal cord integrate information

Question 12

Peripheral nervous system(PNS) function?

Answer 12

cranial and spinal nerves link CNS and rest of body; perform motor and sensory functions

Question 13

Somatic sensory divison is to?

Answer 13

carry general sensory stimuli from muscles, bones, joints, and the skin, as well as special sensory stimuli

Question 14

examples of Somatic sensory division?

Answer 14

skeletal muscle and skin

Question 15

visceral sensory division is to?

Answer 15

carry stimuli from organs

Question 16

examples of visceral sensory divison?

Answer 16

urinary bladder and stomach

Question 17

somatic motor division is to?

Answer 17

carry stimuli to skeletal muscles

Question 18

examples of somatic motor division?

Answer 18

skeletal muscle

Question 19

Autonomic nervous system(ANS) Is to?

Answer 19

carry stimulis to smooth muscle, cardiac muscle and glands

Question 20

examples of autonomic nervous system (ANS)

Answer 20

cardiac muscle and smooth muscles

Question 21

Motor Neurons:

Answer 21

Transmit signals from the central nervous system to muscles or glands, causing them to contract or secrete

Question 22

Interneurons:

Answer 22

found entirely within the central nervous system, they integrate and process information received from sensory neurons and relay signals to motor neurons.

Question 23

Sensory Neurons:

Answer 23

Transmit sensory information from sensory receptors to the central nervous system (brain and spinal cord).

Question 24

Pseudounipolar Neurons:

Answer 24

Have a single process extending from the cell body, which divides into two branches - one acts as a dendrite, and the other functions as an axon.

Question 25

the function: Astrocyte (neuroglial cell type)

Answer 25

- achor neurons and blood vessels - regulate the extracellular environment - facilitate the formation of the blood brain barrier - repair demaged tissue

Question 26

the function: oligodendrocyte(neuroglial cell type)

Answer 26

- myelinates certain axons in the CNS

Question 27

the function: micrroglial cell(neuroglia cell type)?

Answer 27

- act as phagocytes

Question 28

the function: ependymal cell (neuroglial cell type)

Answer 28

-line cavities - cilia circulates fluid around brain and spinal cord - some secrete this fluid

Question 29

(Schwann cell)neuroglial cell type?

Answer 29

- myelinate certain axons in the PNS

Question 30

(Satellite cell) neuroglial cell type?

Answer 30

- surround and support cell bodies

Question 31

Integration

Answer 31

means combining different things or ideas together to make a unified whole