Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Undeleted > Brainstem > Flashcards

Brainstem Flashcards

1
Q

Somatic Afferent

A

-monitors external environment

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

Somatic Efferent

A

-reacts with external environment

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

Visceral Afferent

A

-monitors internal environement

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

Visceral Efferent

A

-controls internal environment

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

Sulcus limitans

A

-in the floor of the 4th ventricle; separates the cranial nerve motor nuclei from the sensory nuclei

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

Special Somatic Afferent

A

-afferent nerves that carry information from the special senses of vision, hearing and balance

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

General Somatic Afferent

A
  • arise from cells in the spinal ganglia and are found in most the spinal nerves
  • conduct impulses of pain, touch and temperature from the surface of the body through the posterior roots to the spinal cord and impulses of muscle sense, tendon sense and joint sense from the deeper structures
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Special Visceral Afferent

A

-carry the special senses of smell (olfaction) and taste (gustation)

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

General Visceral Afferent

A

-conduct sensory impulses (usually pain or reflex sensations) from the viscera, glands, and blood vessels to the central nervous system

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

General Visceral Efferent

A

-refers to the efferent neurons of the autonomic nervous system that provide motor innervation to smooth muscle, cardiac muscle, and glands (contrast with SVE fibers)

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

Special Visceral Efferent

A

-efferent nerves that provide motor innervations to the muscles of pharyngeal arches in head and neck

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

Somatic Efferent

A

-

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

4th Ventricle

A
  • extends from the cerebral aqueduct to the obex
  • filled with cerebrospinal fluid (CSF)
  • located within the pons or in the upper part of the medulla
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Abducens Nucleus

A
  • originating nucleus from which the abducens nerve (VI) emerges - a cranial nerve nucleus
  • nucleus is located beneath the fourth ventricle in the caudal portion of the pons, medial to the sulcus limitans
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Basilar Pons

A

-anterior portion of the pons

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

Cerebral Aqueduct

A
  • contains cerebrospinal fluid (CSF)
  • within the mesencephalon (or midbrain)
  • connects the third ventricle in the diencephalon to the fourth ventricle within the region of the mesencephalon and metencephalon
  • located dorsal to the pons and ventral to the cerebellum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cochlear Nucleus

A
  • two heterogeneous collections of neurons in the mammalian brainstem that receive input from the cochlear nerve
  • carries sound information from the cochleae
  • outputs from the cochlear nuclei are received in higher regions of the auditory brainstem
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Cuneate Tract

A
  • carry proprioceptive and fine touch sensations

- carries sensations from upper half of our body

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

Dorsal Motor Nucleus of the Vagus

A
  • cranial nerve nucleus for the vagus nerve in the medulla that lies under the floor of the fourth ventricle
  • mostly serves parasympathetic vagal functions in the gastrointestinal tract, lungs, and other thoracic and abdominal vagal innervations
20
Q

Facial Nucleus

A
  • collection of neurons in the brainstem that belong to the facial nerve (cranial nerve VII)
  • lower motor neurons innervate the muscles of facial expression and the stapedius
21
Q

Gracilis Tract

A
  • carry proprioceptive and fine touch sensations

- carries sensations from lower half of our body

22
Q

Hypoglossal Nucleus

A
  • a cranial nerve nucleus
  • extends the length of the medulla, and being a motor nucleus, is close to the midline
  • nucleus of hypoglossal nerve in the medulla oblongata
23
Q

Inferior Colliculus

A
  • principal midbrain nucleus of the auditory pathway
  • receives input from several more peripheral brainstem nuclei in the auditory pathway, as well as inputs from the auditory cortex
24
Q

Inferior Cerebellar Peduncle

A
  • connects the spinal cord and medulla oblongata with the cerebellum
  • comprises the juxtarestiform body and restiform body
25
Q

Lateral Lemniscus

A

-tract of axons in the brainstem that carries information about sound from the cochlear nucleus to various brainstem nuclei and ultimately the contralateral inferior colliculus of the midbrain

26
Q

Inferior Olive

A
  • largest nucleus situated in the olivary body, part of the medulla oblongata
  • control and coordination of movements
  • sensory processing and cognitive tasks likely by encoding the timing of sensory input independently of attention or awareness
27
Q

Middle Cerebellar Peduncle

A
  • connect the cerebellum to the pons
  • composed entirely of centripetal fibers, which arise from the cells of the nuclei pontis of the opposite side and end in the cerebellar cortex
28
Q

Medial Lemniscus

A

-pathway in the brainstem that carries sensory information from the gracile and cuneate nuclei to the thalamus

29
Q

Medial Longitudinal Fasciculus

A
  • pair of crossed fiber tracts (group of axons), one on each side of the brainstem
  • near the midline of the brainstem and are composed of both ascending and descending fibers
  • carries information about the direction that the eyes should move
30
Q

Nucleus Cuneatus

A

-carrying fine touch and proprioceptive information from the upper body

31
Q

Nucleus Gracilis

A

-carrying fine touch and proprioceptive information from the lower body

32
Q

Oculomotor Nuclear Complex

A

-give rise to the axons of the occulomotor nerve, both motor and parasympathetic fibers, situated at the midline at the level of the superior colliculus in the midbrain tegmentum

33
Q

Pyramidal Tract

A
  • pathway in central nervous system, originating in the sensorimotor areas of the cerebral cortex and generally descending through the brain stem to the spinal cord
  • fibers transmit motor impulses that function in the control of voluntary movement
34
Q

Periaqueductal Gray

A
  • gray matter located around the cerebral aqueduct within the tegmentum of the midbrain
  • role in the descending modulation of pain and in defensive behavior
35
Q

Superior Colliculus

A

-visual reflex center

36
Q

Superior Cerebellar Peduncle

A
  • emerge from the upper and medial part of the white matter of the hemispheres
  • under the upper part of the cerebellum
  • all fibetrs carrying information from the spinal cord to the cerebellum (ventral spinocerebellar tract) pass through
37
Q

Solitary Nucleus

A

-series of nuclei forming a vertical column of grey matter embedded in the medulla oblongata

38
Q

Solitary Tract

A
  • conveys afferent information from stretch receptors and chemoreceptors in the walls of the cardiovascular, respiratory, and intestinal tracts
  • afferent fibers from cranial nerves 7, 9 and 10 convey taste (SVA) in its rostral portion
  • general visceral sense (GVA) in its caudal part -taste buds in the mucosa of the tongue can generate impulses in the rostral regions of the tract -efferent fibers are distributed to the solitary tract nucleus
39
Q

Trigeminal Mesencephalic Nucleus

A
  • proprioception of the face, that is, the feeling of position of the muscles
  • contains no chemical synapses but are electrically coupled
40
Q

Trigeminal Motor Nucleus

A
  • motor neurons that innervate muscles of the first branchial arch =the muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid, and anterior belly of the digastric
  • mid pons
41
Q

Trigeminal Mesencephalic Tract

A

-

42
Q

Trigeminal Nerve Root

A

-

43
Q

Trigeminal Principal Sensory Nucleus

A

-

44
Q

Trigeminal Spinal Nucleus

A

-

45
Q

Trigeminal Spinal Tract

A

-

46
Q

Vestibular Nuclear Complex

A

-

Undeleted (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions