Last- Reflexes Flashcards Preview

Anatomy & Physiology Lab > Last- Reflexes > Flashcards

Flashcards in Last- Reflexes Deck (19)
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1
Q

a rapid, predictable, and involuntary response to an environmental stimulus

A

Reflex

2
Q

the neural pathway responsible for a reflex

A

reflex arc

3
Q

a “reflex arc” is composed of what 5 parts:

A
sensory receptor
sensory nerve
integrating center
motor neuron 
effector organ
4
Q

responds to an internal or external stimulus, and initiates an afferent nerve impulse in a sensory nerve

A

sensory receptor

5
Q

passes the afferent impulse along to the CNS

A

sensory nerve

6
Q

reacts to afferent impulses by generating and efferent motor impulse

A

integrating center

7
Q

transmits a motor nerve impulse from the integrating center to an effector organ, like a muscle or gland.

A

motor neuron

8
Q

responds to the motor impulse w a typical motor action

A

effector organ

9
Q

innate responses designed to protect the body, and enable posture maintenance and balance when standing and moving; these reflexes involve the somatic nervous system which controls the contraction of all skeletal muscles

A

somatic reflexes

10
Q

types stretch reflexes used to demonstrate “somatic reflexes”

A

pateller feflex
achilles reflex
Cranial reflex [special somatic reflex(corneal reflex; eye)]

11
Q

somatic reflex that stimulates the “quadraceps femoris of the thigh” causeing the “knee to jerk”

A

patellar reflex

12
Q

somatic reflex which stimulates the “gastrocnemius muscle” causeing the ?”foot to extend”?

A

Achilles reflex

13
Q

special kind of somatic reflex controlled by cranial nerves; stimulates the “trigeminal nerve(V) carrying an afferent nefve impulse and the “facial nerve (VII)” carries the efferent nerve impulse, stimulating the cornea causing the eye to blink

A

Corneal (cranial) reflex

14
Q

involuntary responses which control reactions of smooth & cardiac muscle and glands; controlled by autonomic nervous system

A

Autonomic reflexes

15
Q

types of autonomic reflexes

A

pupillary reflex

ciliospinal reflex

16
Q

autonomic reflex, initiated by stimulation of the retina w light; “optic nerve(II)” carries the afferent nerve impulse and the “oculomoter nerve(III)” carries the efferent or motor impulse; reflex is mediated in the optic nerve, causes the retina to dilate or contstrict

A

Pupillary Reflex

17
Q

retina becomes larger

A

dilate

18
Q

retina becomes smaller

A

constrict

19
Q

autonomic reflex causing the pupil to dilate, stimulated by touch…lightly stroking the hairs on the back of either the left or right side of the neck thus leading to the same side pupil to dilate

A

Ciliospinal reflex