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Neuroanatomy > Brainstem Region > Flashcards

Brainstem Region Flashcards

1
Q

Located posteriorly
Includes sensory nuclei and ascending sensory tracts and cranial nerve nuclei
Middle region of the midbrain

A

Tegmentum

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2
Q

Tract that coordinates eye and head movements

A

Medial Longitudinal Fascicules

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3
Q

Includes structures involved in reflexive control of intrinsic and extrinsic eye muscles and in movements of the head

A

Tectum

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4
Q

Located anteriorly and contains predominantly motor system structures

A

Basilar Section

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5
Q

Sensory, sense of smell

A

Cranial Nerve I - Olfactory Nerve

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6
Q

Sensory, vision

A

Cranial Nerve II - Optic Nerve

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7
Q

Motor, eye movements, papillary constriction and accommodation, and muscles of the eyelid

A

Cranial Nerve III - Oculomotor Nerve

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8
Q

Motor, Eye movements (intorsion, downward gaze)

A

Cranial Nerve IV - Trochlear Nerve

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9
Q

Sensory and motor, somatic sensation from face, mouth, cornea; muscles of mastication

A

Cranial Nerve V - Trigeminal Nerve

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10
Q

Motor, Eye movements (abduction or lateral movements)

A

Cranial Nerve VI - Abducens Nerve

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11
Q

Sensory and motor, Controls the muscles of facial expression; taste from anterior tongue; lacrimal and salivary glands

A

Cranial Nerve VII - Facial Nerve

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12
Q

Sensory, Hearing and sense of balance

A

Cranial Nerve VIII - Vestibulocochlear Nerve

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13
Q

Sensory and motor, sensation from posterior tongue and pharynx, taste from posterior tongue, carotid baroreceptors and chemoreceptors

A

Cranial Nerve IX - Glossopharyngeal Nerve

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14
Q

Sensory and motor, Autonomic functions of gut, sensation from larynx and pharynx, muscles of vocal cords, swallowing

A

Cranial Nerve X - Vagus Nerve

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15
Q

Motor, Shoulder and neck muscles

A

Cranial Nerve XI - Spinal Accessory Nerve

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16
Q

Motor, Movements of tongue

A

Cranial Nerve XII - Hypoglossal Nerve

17
Q

Touch, Proprioception

A

Dorsal Column/Medial Lemniscus System

18
Q

Axons from lower limb and lower trunk

A

Fasciculus Gracilis (medial)

19
Q

Axons from upper limb, upper trunk, and neck

A

Fasciculus Cuneatus (lateral)

20
Q

Connects midbrain to cerebellum

A

Superior Peduncle

21
Q

Connects pons to cerebellum

A

Middle Peduncle

22
Q

Connects medulla to cerebellum

A

Inferior Peduncle

23
Q

A complex neural network that includes the reticular nuclei, their connections, and ascending and descending reticular pathways

A

Reticular Formation

24
Q

Consists of midbrain and upper pons
Maintain alert conscious state in the forebrain

A

Ascending Reticular Activating System (ARAS)

25
Q

Consists of pons and medulla
Motor, reflex, and autonomic functions

A

Caudal Reticular Formation

26
Q

The uppermost part of the brainstem connecting diencephalon and pons
Divided into three regions from anterior to posterior: basis pedunculi, tegmentum, and tectum

A

Midbrain

27
Q

A small canal through the midbrain, joins the third and fourth ventricles

A

Cerebral Aquaduct

28
Q

Involved in reflexes of the eyes

A

Pretectal Area

29
Q

Relay auditory information from the cochlear nuclei to superior colliculus, medial geniculate body of the thalamus, and reticular activating system

A

Inferior Colliculi

30
Q

Receives sensory and motor information and is involved in reflexive eye and head movements

A

Superior Colliculi

31
Q

Formed by the cerebral peduncles (connects midbrain to other parts of the brain), composed of descending tracts from the cerebral cortex and the substantia nigra

A

Basis Pedunculi

32
Q

Located between midbrain and medulla
Most vertical tracts continue unchanged through this

A

Pons

33
Q

Inferior part of the brainstem, continuous with spinal cord inferiorly and pons superiorly
Has two vertical bulges called pyramids

A

Medulla

34
Q

Influenced by cerebral activity and partially executed by the CNS
Contributes to control of head movements
Coordinates swallowing
Helps regulate cardiovascular, respiratory, and visceral activity

A

Functions of the Medulla

Neuroanatomy (5 decks)

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