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Flashcards in Week 2 Deck (26):
1

What is the process of the reflex arc?

1. stimulus- nocioreceptor sends signal 2. Signal recieved at CNS 3. Processed at CNS 4. Sends a motor response 5. Effector cells respond.

2

When conducting the Babinski test, what does the follow response indicate? Big toe flexes upwards and other toes fan out?

damage to corticospinal tract. motor response is not responding

3

What are the 2 divisions of the Autonomic Nervous System?

Sympathetic (fight and flight). Parasympathetic (rest and digest).

4

What nervous system includes the brain and spinal cord?

CNS

5

What nervous system contains the cranial nerves, spinal nerves and the ganglia?

PNS

6

In the PNS, the nerves that extend from the brain are called?

cranial nerves

7

How many cranial nerves are there?

12

8

The olfactory nerve is responsible for what?

nose- smell

9

The optical nerve is responsible for?

eye- sight

10

What do mechanoreceptors respond too?

pressure/ tactile

11

What do thermoreceptors respond too?

temperature

12

What do photoreceptors respond too?

light

13

What do chemoreceptors respond too?

chemicals in a solution

14

what do nociceptors respond too?

pain

15

What do exteroceptors respond too?

outside the organs

16

What do interoreceptors respond too?

with in the body

17

what do propruoceptors?

skeleton system

18

The somatic nervous system responds to what kind of stimulus? Give an example.

conscious. Thirsty= get a drink

19

What is the purpose of a knee jerk or patella reflex test?

Motor response of CNS

20

What are 2 innate human reflexes?

blinking. breathing

21

What are 2 acquired human reflexes?

walking. chewing

22

What is the importance of the pupillary light reflex?

ensures photoreceptors are running normally and there is no damage to retinas

23

describe the patellar reflex..

stimulus is picked up by sensory neuron, taken to interneuron. motor neuron sends to effector and quadraceps contract resulting in foot kicking out

24

Can a person prevent the reflex occurring?

some individual may exert control but cant prevent.

25

what is the plantar reflex?

toes curling downwards when sole of foot stroked in downwards motion. it tests the integrity of nerves.

26

What is the name of the neurotransmitter associated with skeletal muscle?

acetylcholine