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Anatomy > CNS and PNS test > Flashcards

CNS and PNS test Flashcards

1
Q

What is the cauda equina?

A

Extended nerve that branches from the end of the spinal cord

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2
Q

How are spinal nerves grouped and numbered?

A

Grouped by their location along the spinal cord

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3
Q

What does the cervical plexus control?

A

Neck

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4
Q

What does the brachial plexus control?

A

Shoulders and upper arms

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5
Q

What does the lumbar plexus and the sacral plexus control?

A

The pelvic girdle and lower limb

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6
Q

What is a plexus?

A

Complex network of nerves

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7
Q

What does a gyrus look like?

A

Ridges

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8
Q

What does a sulcus look like?

A

Shallow groove

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9
Q

What does a fissure look like?

A

Deep groove

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10
Q

What is the function of the frontal lobe?

A

Controls movements of skeletal muscles, and performs higher intellectual processes

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11
Q

What is the function of the parietal lobe?

A

Has sensory areas that provide sensations of temperature, pain, touch, and pressure. Also has an association area function in understanding speech

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12
Q

What is the function of the temporal lobe?

A

Has sensory areas responsible for hearing, and association areas to interpret sensory experiences

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13
Q

What is the function of the occipital lobe?

A

Sensory areas responsible for vision

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14
Q

What is Broca’s area?

A

In the left cerebral hemisphere, it coordinates complex muscular actions of the mouth

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15
Q

What is Wernicke’s area?

A

General interpretation. Where the parietal, temporal, and occipital association areas join, plays the primary role in complex thought processing and helps arrange words

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16
Q

What is the role of the hippocampus?

A

Memory

17
Q

What does the midbrain do?

A

Processes visual and auditory information. Regulates involuntary functions

18
Q

What do the pons do?

A

Relay nerve impulses to and from the medulla oblongata and cerebrum. Also helps regulate deep breathing and sleep/wake cycles

19
Q

What does the medulla do?

A

Regulates autonomic functions like heart rate, blood pressure and digestive activities

20
Q

What is gray matter composed of?

A

Cell bodies and dendrites

21
Q

What is white matter composed of?

A

Myelinated axons

22
Q

What is the main function of the cerebellum?

A

Balance and coordination

23
Q

What is the primary function of the brain stem?

A

Regulates visceral functions. To serve as a relay station. Connects brain to spinal cord.

24
Q

What are the three parts the brain stem consists of?

A

Midbrain
Pons
Medulla oblongata

25
Q

What are the three parts of the diencephalon?

A

Thalamus
Hypothalamus
Epithalamus

26
Q

Function of the thalamus?

A

Relay sensory info

27
Q

Function of hypothalamus?

A

Maintain homeostasis by regulation hormones and autonomic functions

28
Q

Function of the epithalamus?

A

Contains pineal gland which secretes the hormone melatonin

Anatomy (16 decks)

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