PSIO 4.2 Quiz

what structure of the sheep brain is labeled by #1?

cerebrum

what structure of the sheep brain is labeled by #2?

corpus collosum

what structure of the sheep brain is labeled by #3?

epithalamus

what structure of the sheep brain is labeled by #4?

pineal gland

what structure of the sheep brain is labeled by #5?

cerebellum

what structure of the sheep brain is labeled by #6?

superior colliculus

what structure of the sheep brain is labeled by #7?

inferior colliculus

what structure of the sheep brain is labeled by #8?

fornix

what structure of the sheep brain is labeled by #9?

choroid plexus

what structure of the sheep brain is labeled by #10?

thalamus

what structure of the sheep brain is labeled by #11?

optic chiasm

what structure of the sheep brain is labeled by #12?

midbrain

what structure of the sheep brain is labeled by #13?

pituitary gland

what structure of the sheep brain is labeled by #14?

pons

what structure of the sheep brain is labeled by #15?

medulla oblongata

what structure of the sheep brain is labeled by #16?

spinal cord

what structure of the sheep brain is highlighted in yellow?

cerebrum

what structure of the sheep brain is highlighted in yellow?

pineal gland

what structure of the sheep brain is highlighted in yellow?

superior colliculi

what structure of the sheep brain is highlighted in yellow?

inferior colliculi

what structure of the sheep brain is highlighted in yellow?

cerebellum

what structure of the sheep brain is highlighted in yellow?

pre-central gyrus

what structure of the sheep brain is highlighted in yellow?

post-central gyrus

what structure of the sheep brain is highlighted in yellow?

central sulcus

what structure of the sheep brain is highlighted in yellow?

vermis

what structure is highlighted in yellow?

fascicle

what structure is highlighted in yellow?

epineurium

what structure is highlighted in yellow?

perineurium

what structure is highlighted in yellow?

unmyelinated nerve fibers

what structure is highlighted in yellow?

myelinated nerve fibers

what structure is highlighted in yellow?

endoneurium

what structure is highlighted in yellow?

myelin

what structure is highlighted in yellow?

whole nerve

what structure is highlighted in yellow?

epineurium

what structure is highlighted in yellow?

perineurium

what structure is highlighted in yellow?

endoneurium

what structure is highlighted in yellow?

axon of neuron and surrounding myelin sheath

what structure is highlighted in yellow?

fascicle

what is the function of spinal nerves?

send information from peripheral sensory receptors to the spinal cord and information from the spinal cord to effectors

mediate spinal reflexes

what is a plexus?

braided network of nerves

what nerve is highlighted in yellow?

median nerve

what nerve is highlighted in yellow?

brachial plexus

what nerve is highlighted in yellow?

ulnar nerve

what nerve is highlighted in yellow?

median nerve

what nerve is highlighted in yellow?

ulnar nerve

what nerve is highlighted in yellow?

musculocutaneous nerve

what nerve is highlighted in yellow?

radial nerve

what nerve is highlighted in yellow?

median nerve

what nerve is highlighted in yellow?

ulnar nerve

what nerve is highlighted in yellow?

axillary nerve

what muscles do the axillary nerve innervate?

deltoid

teres minor

what muscles do the musculocutaneous nerve innervate?

brachialis

biceps brachii

what part of the body does the axillary nerve move?

arm

what part of the body does the musculocutaneous nerve move?

forearm

what parts of the body does the radial nerve move?

forearm

hand

digits of the hand

what muscles does the radial nerve innervate?

triceps brachii

brachioradialis

extensor carpi radialis longus

extensor carpi radialis brevis

extensor carpi radialis ulnaris

extensor digitorum

extensor digiti minimi

abductor pollicus longus

extensor pollicus brevis

what muscles does the median nerve innervate?

pronator teres

palmaris longus

flexor carpi radialis

flexor digitorum superficialis

lateral haldf of flexor digitorum profundus

what parts of the body does the median nerve move?

forearm

hand

digits of the hand

what parts of the body does the ulnar nerve move?

hand

digits of the hand

what muscles does the ulnar nerve innervate?

flexor carpi ulnaris

medial half of flexor digitorum profundus

what part of the body does the femoral nerve move?

thigh/leg

what muscles does the femoral nerve innervate?

iliacus

sartorius

quadriceps

what muscles does the obturator nerve innervate?

part of adductor magnus

adductor longus

adductor brevis

gracilis

what body part does the obturator nerve move?

thigh/leg

what body part does the sciatic nerve move?

thigh/leg

what body part does the tibial nerve move?

thigh/leg (calf)

foot

digits of the foot

what body part does the common fibular nerve move?

foot

digits of the foot

what muscles does the sciatic nerve innervate?

biceps femoris

semimembranosus

semitendinosus

what muscles does the tibial nerve innervate?

gastrocnemius

soleus

flexor digitorum longus

flexor hallucis longus

tibialis posterior

what muscles does the common fibular nerve innervate?

tibialis anterior

fibularis longus

extensor digitorum longus

what nerve is highlighted in yellow?

sciatic nerve

what nerve is highlighted in yellow?

tibial nerve

what nerve is highlighted in yellow?

common fibular nerve

what nerve is highlighted in yellow?

partial obturator nerve

what nerve is highlighted in yellow?

sacral plexus

what nerve is highlighted in yellow?

femoral nerve

what are reflexes?

rapid, involuntary motor responses to environment stimuli detected by sensory receptors

is cerebral decision making required to initiate a reflex?

no

what part of the reflex arc is highlighted in yellow?

sensory receptor

what part of the reflex arc is highlighted in yellow?

sensory neuron

what part of the reflex arc is highlighted in yellow?

integrating center

what part of the reflex arc is highlighted in yellow?

motor neuron

what part of the reflex arc is highlighted in yellow?

effector

what does a sensory receptor do?

responds to a stimulus by producing a generator or receptor potential

what does a sensory neuron do?

axon conducts impulses from receptor to integrating center

what does an integrating center do?

one or more regions within the CNS that relay impulses from sensory to motor neurons

what does a motor neuron do?

axon conducts impulses from integrating center to effector

what does an effector do?

muscle or gland that responds to motor nerve impulses

what are the four ways to classify a reflex?

cranial vs spinal

somatic vs autonomic

monosynaptic vs polysynaptic

ipsilateral vs contralateral vs bilateral

what is the classification of the corneal reflex?

cranial

somatic

bilateral

polysynaptic

what is the classification of the pupillary light reflex?

cranial

autonomic

ipsilateral

polysynaptic

what is the classification of the consensual light reflex?

cranial

autonomic

contralateral

polysynaptic

what is the classification of the salivary reflex?

cranial

autonomic

bilateral

polysynaptic

what is the classification of the gag reflex?

cranial

autonomic

bilateral

polysynaptic

what is the classification of the patellar reflex?

spinal

somatic

ipsilateral

monosynaptic

what is the classification of the achilles reflex?

spinal

somatic

ipsilateral

monosynpatic

what is the classification of the plantar reflex?

spinal

somatic

ipsilateral

polysynaptic

what is the classification of the flexor reflex?

spinal

somatic

ipsilateral

polysynaptic

what is the classification of the crossed extensor reflex?

spinal

somatic

contralateral

polysynaptic

what is the sensory receptor for the crossed extensor reflex?

nociceptors in the sole of the foot