Gross Anatomy of the Brain

Question 1

Consists of the cranial and spinal nerves and their associated ganglia

Answer 1

Peripheral nervous system

Question 2

Both brain and spinal cord are covered with a system of membranes called ______ and they are suspendes in the _____

Answer 2

Meninges; cerebrospinal fluid

Question 3

The CNS is composed of large numbers of excitable nerve cells and their processes called

Answer 3

Neurons

Question 4

The CNS is supported by specialized tissue called

Answer 4

Neuroglia

Question 5

The long process of a nerve cell are called

Answer 5

Axon or Nerve Fibers

Question 6

Consists of nerve cells embedded in neuroglia; it has gray color

Answer 6

Gray matter

Question 7

Consists of nerve fibers embedded in neuroglia

Answer 7

White matter

Question 8

Why does white matter has white color?

Answer 8

Due to the presence of lipid material in the myelin sheaths of many of the nerve fibers

Question 9

Part of autonomic system prepare the body for an emergency

Answer 9

Sympathetic

Question 10

Part of the autonomice system are aimed at conserving and restoring energy

Answer 10

Parasympathetic

Question 11

Consists of the brain and spinal cord

Answer 11

Central nervous system

Question 12

A direction toward the nose

Answer 12

Rostral

Question 13

Mass of white matter that connects the two cerebral hemispheres

Answer 13

Corpus Callosum

Question 14

Hemispheres are separated by a deep cleft

Answer 14

Longitudinal Fissure

Question 15

A layer of neuronal cell bodies about 0.5 cm thick that covers the entire surface of the hemisphere

Answer 15

Cerebral cortex

Question 16

A fold or convolution

Answer 16

Gyrus (gyri)

Question 17

A groove between adjacent gyri

Answer 17

Sulcus (sulci)

Question 18

Second major part of the cerebrum that is made up of myelinated axons that carry information to or from cerebral cortex

Answer 18

Subcortical white matter

Question 19

The largest and most organized part of the white matter

Answer 19

Internal capsule

Question 20

Separates frontal, parietal and temporal

Answer 20

Lateral fissure of Sylvius

Question 21

Motor area; seat of mental activities

Answer 21

Frontal lobe

Question 22

Somesthetic area (sensory)

Answer 22

Parietal lobe

Question 23

Visual center

Answer 23

Occipital lobe

Question 24

Hearing center

Answer 24

Temporal lobe

Question 25

It function as a relay station between the brain stem and the cerebrum

Answer 25

Diencephalon

Question 26

Largest division of the diencephalon; 2 egg shaped masses bordering the third ventricle; receives precortical sensory input from all sensory except the olfactory

Answer 26

Thalamus

Question 27

Cavity of diencephalon bordered bilaterally by the thalamus and hypothalamus

Answer 27

Third Ventricle

Question 28

Connection between thalami

Answer 28

Interthalamic adhesion

Question 29

Forms the lower of the lateral wall and floor of the third ventricle; fuctions primarily in thr maintenance of homeostasis

Answer 29

Hypothalamus

Question 30

Hypothalamus subservs 3 systems namely:

Answer 30

1. Autonomice Nervous System 2. Endocrine 3. Lymbic

Question 31

Separates hypothalamus from thalamus

Answer 31

Hypothalamic Sulcus

Question 32

A stalk like part of the brain; located in the posterior cranial fossa

Answer 32

Brainstem

Question 33

Brainstem is conists of:

Answer 33

1. Midbrain 2. Pons 3. Medulla Oblongata

Question 34

Shortest part of the brainstem; contains the nuclei of the Oculomotor and Trochlear nerves

Answer 34

Midbrain