Gross Anatomy of the Brain

Question 1

Anatomical Divisions of the Nervous System?

Answer 1

Central NS

Peripheral NS

Question 2

Fast-acting control system
Responds to internal and external change
Activates muscles and glands

Answer 2

Nervous System

Question 3

Regions of the Brain

Answer 3

Cerebral hemispheres
Diencephalon
Brain stem
Cerebellum

Question 4

Extends from the Frontal to Occipital bones; above the anterior and middle cranial fossae; and posteriorly above the tentoriumcerebelli

Answer 4

Cerebrum

Question 5

Hemispheres are separated by a deep cleft –Longitudinal fissure

Answer 5

Cerebrum

Question 6

The surface of the Cerebrum is made of ____ and ____

Answer 6

Ridges (Gyri) and grooves (Sulci)

Question 7

Motor area and seat of mental activities of the Cerebrum

Answer 7

Frontal Lobe

Question 8

Somesthetic area of the Cerebrum

Answer 8

Parietal Lobe

Question 9

Visual Center of the Cerebrum

Answer 9

Occipital Lobe

Question 10

Hearing center of the Cerebrum

Answer 10

Temporal Lobe

Question 11

Contains functional centersfor the integrationof all information passing from the brainstem and spinal cord to the cerebral hemispheres

Answer 11

Diencephalon

Question 12

The Diencephalon is subdivided into 4 parts, which are?

Answer 12

Thalamus
Shypothalamus
Subthalamus
Epithalamus

Question 13

Almost completely hidden from the surface of the brain and consists of a dorsal Thalamus and a ventral Hypothalamus

Answer 13

Diencephalon

Question 14

large mass of gray matter that lies on either side of the Third ventricle

Answer 14

Thalamus

Question 15

Forms the lower part of the lateral wall and floor of the Third ventricle

Answer 15

Hypothalamus

Question 16

T or F:

Receives precortical sensory input from all sensory systems except the olfactory.

Answer 16

T

Question 17

Cavityof diencephalon, bordered bilaterally by the thalamus and hypothalamus

Answer 17

Third Ventricle

Question 18

Connection between thalami

Answer 18

Interthalamic adhesion

Question 19

Lies within the floor and ventral part of the walls of the third ventricle

Answer 19

Hypothalamus

Question 20

The Hypothalamus subserves 3 systems, which are?

Answer 20

Autonomic NS
Endocrine
Limbic

Question 21

Stalk like part of the brain ; located in the posterior cranial fossa.

Answer 21

Brainstem

Question 22

The Brainstem consists of?

Answer 22

Midbrain
Pons
Medulla oblongata

Question 23

Narrow part of the brain that passes through the tentorialnotch and connects the forebrain to the hindbrain

Answer 23

Midbrain

Question 24

The Midbrain comprises two lateral parts called the Cerebral peduncles; each of these is divided into an anterior part – ______, and a posterior part – _______

Answer 24

Comprises two lateral parts called the Cerebral peduncles; each of these is divided into an anterior part – CRUS CEREBRI , and a posterior part –TEGMENTUM

Question 25

Part of the midbrain posterior to the cerebral aqueduct

Answer 25

Tectum

Question 26

The Tectum has four surface swellings, which are?

Answer 26

Two superior and two inferior colliculi

Question 27

Small glandular structure that lies between the superior colliculi; attached by a stalk to the region of the posterior wall of the third ventricle

Answer 27

Pineal Body

Question 28

Shortest part of the brainstem and contains the nuclei of the Oculomotor and Trochlear nerves. Centers associated with auditory, visual and pupillary reflexes.

Answer 28

Midbrain

Question 29

The Midbrain is known to be with centers associated with?

Answer 29

Auditory, visual, and pupillary reflexes

Question 30

Situated on the anterior surface of the cerebellum below the midbrain and above the medulla oblongata

Answer 30

Pons

Question 31

Composed mainly of nerve fibers connecting the 2 parts of cerebellum; and ascending and descending fibers connecting the forebrain, midbrain and spinal cord

Answer 31

Pons

Question 32

Forms the floor of the rostral part of the 4th ventricle

Answer 32

Pons

Question 33

Contains nuclei related to the Trigeminal, Abducent ,Facial and Vestibulocochlearnerves

Answer 33

Pons

Question 34

Centers associated with mastication, eye movements, facial expression, blinking, salivation, equilibrium and audition.

Answer 34

Pons

Question 35

Conical in shape and connects the Pons above to the Spinal cord below

Answer 35

Medulla Oblongata

Question 36

Median fissure is present on the anterior surface and on each side of this is a swelling called the Pyramidwhich tapers below forming the Decussation of the Pyramid

Answer 36

Medulla Oblongata

Question 37

On the posterior surface of the inferior part of the medulla oblongata are the _____ and _______

Answer 37

Gracile and Cuneatetubercles

Question 38

This forms the caudal floorof the 4th ventricle

Answer 38

Medulla Oblongata

Question 39

Contains nuclei related to Glossopharyngeal, Vagus, Accessory and Hypoglossal nerves

Answer 39

Medulla Oblongata

Question 40

Centers associated with deglutition, coughing, vomiting, salivation, tongue movements, respiration and circulation

Answer 40

Medulla Oblongata

Question 41

Consisting Corpora Quadrigemina

Answer 41

Tectum

Question 42

The floor of the 4th ventricle divisible is into two parts, which are?

Answer 42

Pontine and medullary

Question 43

Caudal tip of the 4th ventricle

Answer 43

Obex

Question 44

On either side of the posterior median sulcus is the ______

Answer 44

Gracile tubercle

Question 45

T or F: | Lateral to each gracile tubercle is the CUNEATE TUBERCLE

Answer 45

T

Question 46

Lies within the posterior cranial fossa beneath the Tentorium cerebelli; situated posterior to the Pons and medulla oblongata

Answer 46

Cerebellum

Question 47

The Cerebellum consists of two hemispheres connected by a median portion called?

Answer 47

Vermis

Question 48

Influences thetimingand force of contractionsof voluntary muscles–smooth, coordinated movements

Answer 48

Cerebellum

Question 49

What Lobe? | Paleocerebellum or Spinocerebellum–limbs via spinal connections

Answer 49

Anterior Lobe

Question 50

What Lobe? | Neocerebellum or Cerebrocerebellum–cerebral cortex

Answer 50

Posterior Lobe

Question 51

What Lobe? | Archicerebellum or Vestibulocerebellum–vestibular apparatus

Answer 51

Floculonodular lobe

Question 52

Located above tentorium cerebelli

Answer 52

Supratentorial Level

Question 53

Located belowtentorium cerebellibut aboveforamen magnum

Answer 53

Infratentorial / Posterior fossa level

Question 54

Located below foramen magnum but contained within the vertebral column

Answer 54

Spinal level

Question 55

Located outside the skull and vertebral column

Answer 55

Peripheral level