CH.9-2 Brain

Question 1

What are the major parts of a brain, and label them

Answer 1

Cerebrum, Thalamus, Hypothalamus, Midbrain, Pituitary Glands, Pons, Medulla Oblongata, cerebellum, Spinal Cord

Question 2

Cerebrum

Answer 2

Controls our ability to read, write, speak, think, remember, feel, and move
Interpretation of sensory information
Motor function
Four external lobes: frontal, parietal, temporal and
occipital lobes

Question 3

Thalamus

Answer 3

Egg shaped
Receives and passes sensory info (pain, pleasure, pressure) and afferent nerve transmission
Sorts out, edits and relays impulses of similar function

Question 4

Hypothalamus

Answer 4

Controls autonomic nervous system (involuntary) and hormone production by acting on pituitary glands

Hypothalamus is principle between nervous and endocrine systems

Question 5

Brain Stem

Answer 5

The section between the brain and spinal cord
* A pathway for axons between higher and lower brain centres
* Controls automatic behaviours necessary for survival
* Divided into three parts:
– Midbrain
– Pons
– Medulla oblongata

Question 6

Midbrain

Answer 6

Reflex centre for head and eye movements in response to sight and sounds

Question 7

Pons

Answer 7

In brainstem between medulla oblongata and midbrain
helps regulate breathing
All sensory and motor fibres pass through

Question 8

Medulla Oblongata

Answer 8

most inferior part of brain
where crossover of nerves occurs
Cardiovascular, respiratory, and vasomotor section
also helps regulate sneezing, swallowing, and vomiting

Question 9

Cerebellum

Answer 9

Coordination, posture, and balance