Neurophys Physiology

Question 0

Name the nerve ending that is found in muscle and detect changes in the length of the muscle.

Answer 0

Muscle spindle with is goup Ia nerve ending

Question 1

Name of nerve ending found in deep subcutaneous tissue and detects joint position sense

Answer 1

Ruffini endings which are Group 1 nerve endings

Question 2

Name the nerve ending that is found in tendons and joints to detect load or tension.

Answer 2

Golgi tendon organs and is group Ib nerve endings

Question 3

Name the nerve ending that are found deep subcutaneous tissue and joints and detects vibrations

Answer 3

Pacinian corpuscles which are group II nerve endings

Question 4

Name the nerve endings that are found in the epidermis and detect crude touch and pressure.

Answer 4

Merkel cells which are group III nerve endings

Question 5

Name the nerve endings that are found in the epidermis, dermis, joints and detect pain and temperature.

Answer 5

Naked nerve endings and are group IV

Question 6

Name the nerve that is in the dermal papillae and detect two-point discrimination(fine touch).

Answer 6

Meissner’s corpuscles

Question 7

Name the nerve endings that are in the dermis and the cornea and detect light touch.

Answer 7

Krause’s corpuscles

Question 8

Which neurotransmitters are inhibitory within the CNS?

Answer 8

Glycine (spinal cord) and GABA (brain)

Question 9

Which type of cholinergic receptors are found at the neuromuscular junction and most of all cholinergic receptors?

Answer 9

Nicotinic

Question 10

Which type of cholinergic receptors are found at the parasympathetic postganglionic endings?

Answer 10

Muscarinic

Question 11

Which type of receptor is found in smooth muscle in blood vessels, gut, sphincter and skin. It constricts.

Answer 11

alpha-1 adrenergic receptor

Question 12

What type of receptor is found in the islets of Langerhan’s and decreases insulin secretion?

Answer 12

alpha-2 adrenergic receptors

Question 13

Which type of receptor is found in the cardiac muscle and increases rate and force and in the kidney?

Answer 13

beta-1 adrenergic receptor

Question 14

Which type of receptor is found in the smooth muscle in bronchi, coronary vessels and skeletal muscle and dilates them?

Answer 14

beta-2 adrenergic receptor

Question 15

Which receptor is found in brown fat and increases lipolysis?

Answer 15

beta-3 adrenergic receptors

Question 16

Which type of nociceptor is fast conducting, mostly A fibers, produce well localized, sharp, pricking pain?

Answer 16

Specific: Mechanical, cold thermal, heat thermal

Question 17

Which nociceptor is present in healthy tissue and is not activated by noxious stimuli? It will only begin firing when tissue becomes increasingly inflamed.

Answer 17

Silent nociceptor

Question 18

Which nociceptor is mostly group IV and C type fibers, found in somatic and visceral tissue, may be activated by chemical, thermal or mechanical stimuli?

Answer 18

Polymodal nociceptors

Question 19

Which nociceptor have receptors for bradykinin, prostaglandin E2, serotonin, histamine, interleukin and TNF?

Answer 19

Polymodal nociceptors

Question 20

Which nociceptor is slow conducting and causes poorly localized burning and dull aching pain?

Answer 20

Polymodal nociceptors

Question 21

Which function do A-alpha type nerve fibers do?

Answer 21

Motor to skeletal muscle

Question 22

What function do A-beta type nerve fibers do?

Answer 22

Fine touch, vibration, proprioception

Question 23

What function do A-gamma type nerve fibers have?

Answer 23

Muscle spindles

Question 24

What function do A-delta type nerve fibers have?

Answer 24

Fast pain, temperature and touch

Question 25

What function do B type nerve fibers have?

Answer 25

Preganglionic autonomic fibers

Question 26

What function do C type nerve fibers have?

Answer 26

Postganglionic fibers; slow pain

Question 27

Which fiber type is unmyelinated?

Answer 27

C type nerve fiber