Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy 2019 > Peripheral Nervous System > Flashcards

Peripheral Nervous System Flashcards

1
Q

Nerve

A

White matter of the PNS, contains bundles of axons enclosed in connective tissue wrappings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Endoniurium

A

Surrounds individual axons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Perinurium

A

Surrounds bundles of axons called fascicles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Epinerinum

A

Surrounds entire nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Olfactory Nerve I (CNI)

A

Sensory- Carries the sense of smell (olfaction)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Optic II (CNII)

A

Sensory- carries the sense of vision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Oculomotor III (CNIII)

A

Motor- excited most extraocular muscles, excites levator palpebrae superioris, carries parasympathetic efferent fibers that stimulate intraocular muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Trochlear Nerve IV (CNIV)

A

Motor, excites the superior oblique extraocular muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Trigeminal (CNV)

A

Both sensory and motor- carries the sense of touch from the face and excites the muscles of mastication including the masseter and temporalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Ophthalmic Branch of Trigeminal Nerve

A

Sensory from superior facial region including orbits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Maxillary Branch of Trigeminal Nerve

A

Sensory from middle facial skin including superior oral region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Mandibular Branch of Trigeminal Nerve

A

Motor to masseter and temporalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Abductens (CNVI)

A

Motor-lateral reclusive extraocular muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Facial Nerve (CNVII)

A

Both sensory and motor- carries the sense of taste from the anterior 2/3 of the tongue and excites the muscles of facial expression including frontalis, orbicularis oris, orbicularis oculi, depressor anguli oris, depressor labii inferioris, carries parasympathetic efferent fibers that stimulate the lacrimal gland, sublingual salivary gland and submandibular salivary gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Vestibulocochlear (CNVIII)

A

Sensory-carries the sense of hearing (audition)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Glossopharyngeal (CN IX)

A

Both sensory and motor- carries the sense of taste from the posterior 1/3 of the tongue, sense of touch from the posterior tongue and pharynx, sense of blood pressure and sense of blood gas concentration from arterial baroreceptors and chemoreceptors located in the carotid sinus, and excited muscles of the pharynx important for swallowing, and carries parasympathetic efferent fibers that stimulate the parotid salivary glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Vagus Nerve (CNX)

A

Both sensory and motor- sensory information from visceral organs, sense of BP, and gas concentrations from arterial baroreceptors and chemoreceptors in the aortic arch, carries the majority of parasympathetic efferent fibers that regulate visceral organs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Accessory (CNXI)

A

Motor- Excites the trapezius and deltoids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Dorsal Root Ganglia

A

Bulge on dorsal root, contains soma of pseudounipolar sensory neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Trunk of a spinal nerve

A

Forms by the fusion of ventral and dorsal nerve roots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Dorsal Ramus

A

Small branch that curves posteriorly and inner ages the skin and muscles of the posterior regions of the body

22
Q

Ventral Ramus

A

Large branch that curves anteriorly and inner ages the anterior trunk and the limbs

23
Q

Nerve Plexus

A

Interlacing nerve network formed by several ventral rami that join together three branch again

24
Q

Cervical Plexus

A

Forms from C1-C5, innervates skin and muscles of the neck and shoulder

25
Phrenic Nerve
Forms from ventral rami of C3-C5, excites the diaphragm
26
Brachial Plexus
Forms from C5-T1, innervates pectoral girdle and arm
27
What are the 3 trunks of the brachial plexus
Superior (C5-C6) Middle (C7) Inferior (C8-T1)
28
Lateral Cord
Formed from anterior divisions of superior & middle trunks
29
Medial Cord
Formed by anterior division of inferior trunk
30
Posterior Cord
Formed by union of all 3 posterior divisions
31
Ulnar Nerve
Travels down the medial brachial and antebrachial regions Innervates: Flexors of medial forearm and hand; flexor carpi ulnar is, flexor digital rum profundus >Forms from C8-T1 by way of the medial cord
32
Medial Nerve
Travels down the anterior brachial and antebrachial regions just lateral to the ulnar nerve Innervates: Flexors of lateral forearm, and hand; flexor carpi radialis, flexor digitorum superficalis >Forms from C6-T1 by way of the lateral and medial cords
33
Musculocutaneous nerve
Travels down the anterior of the brachial region deep to biceps brachii and superficial to brachialis Innervates: Flexor arm muscles; biceps brachii & brachialis >Forms from C5-C7 by way of the lateral cord
34
Radial Nerve
Travels down the posterior lateral brachial and antebrachial regions Innervates: Arm and forearm extensor muscles; extensor carpi or digitorum >Forms from C5-T1 by way of the posterior cord
35
Axillary Nerve
Travels through axillary region Innervates: Deltoid, Teres Minor >Forms from C5-C6 by way of the posterior cord
36
Lumbar Plexus
T12-L4 | Innervates: Lower abdomen, medial and anterior portions of the thigh
37
Femoral Nerve
Travels down anterior formoral region Innervates: Quadriceps femoris >Forms from L2-L4
38
Obturator Nerve
Travels down medial femoral region Innervates: Adductor Magnus, Adductor Longus >Forms from L2-L4
39
Sacral Plexus
L4-S4 | Innervates: Lateral and posterior portions of femoral and aural regions
40
Sciatic Nerve
Largest Nerve in the body, travels down the posterior femoral region; Excites hamstrings >Forms from L4-S3
41
Sacral Nerve
Innervates posterior compartment of lower leg; gastrocnemius & Soleus
42
Superficial Fibular Nerve
Innervates lateral compartment of leg | Fibularis longus and fibularis brevis muscles
43
Deep Fibular Nerve
Innervates anterior compartment of lower leg, dorsi flexors and toe extensors; tibialis anterior, extensor digitorum longus
44
Somatic Nervous System
Controls Skeletal Muscles, voluntary
45
Autonomic Nervous System
Regulates glands, smooth and cardiac muscles, involuntary
46
Sympathetic Autonomic Division
Fight or flight, enables body to cope rapidly when excited, frightened, or during exercise and emergency situations
47
Parasympathetic autonomic division
Rest and Digest, dominant in non stressful situations, conserves energy and directs maintenance activities such as digestion and excretion
48
Thoracolumbar Origin
Preganglionic fibers emerge from thoracic and lumbar spinal nerve roots (T1-L2)
49
Paravertebral Ganglia
Lateral to bodies of thoracic and lumbar vertebrae contains soma of “postganglionic” sympathetic motor neurons that are postsynaptic to the preganglionic sympathetic motor neurons
50
Collateral Ganglia
Anterior to the vertebral column
51
Adrenal Medulla
Endocrine gland directly stimulated by preganglionic sympathetic fibers
52
Camiosacral Origin
Preganglionic fibers emerge from brain stem and sacral regions (through cranial nerves and sacral spinal nerves)

Anatomy 2019 (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions