Ch 10, Part 2 Central Nervous System (CNS) Learning Objectives 1. Name the major regions of the adult brain and all related structures of importance. 2. Be able to state the functions of each brain structure. It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation. The grooves on the brain are called sulci. The elevated ridges are gyri. Deeper grooves are fissures.
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Ch 10, Part 2 Central Nervous System (CNS) Learning Objectives 1.Name the major regions of the adult brain and all related structures of importance. 2.Be.
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Ch 10, Part 2 Central Nervous System
(CNS)
Learning Objectives
1. Name the major regions of the adult brain and all related structures of importance.
2. Be able to state the functions of each brain structure.
It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation.
The grooves on the brain are called sulci. The elevated ridges are gyri. Deeper grooves are fissures.
Cerebral Cortex continuedContains three kinds of functional areas:
1. _____ areas (control voluntary movement)
2. _______ areas (conscious awareness of sensations)
3. ________ areas (areas that give meaning to the information we receive, store it in memory if needed, tie it to previous knowledge, and decide what action to take)
Cerebral Hemisphere continued
• Each hemisphere is chiefly concerned with the sensory and motor functions of the ________ side of the body.
Over 80% of the brain is water.
Diencephalon
Forms the ______ ________ of the forebrain.
Consists of three paired structures:
1.
2.
3.
thalamus
hypothalamus
Epithalamus (pineal gland)
Diencephalon continuedThalamus sorts and edits ____________.
Recognizes impulses as _______ or _______.
Helps coordinate _______ activities.
Important to ______________.
The _________ to the cerebral cortex.
Diencephalon continued• Hypothalamus plays a role in 7 key areas. List
(and briefly summarize) those areas in your notes now:
1.
2.
3.
4.
5.
6.
7.
Diencephalon continued
• Epithalamus encompasses the _________
which secretes the hormone melatonin.
Melatonin induces sleep.
Brain Stem Review
• Midbrain
• Pons
• Medulla oblongata
Brain Stem: MidBrain
• What does it do?• If impaired in its core, results in the loss of
_____________ or coma. • The dorsal or posterior part is important for
visual system reflexes, and ___________. • The ventral or anterior part is important for
_______________________. • Two other structures in the depth of the midbrain
are important for normal ___________.
Brain Stem: Pons
• Allows conversations between the cerebral cortex and ________.
• Help medulla maintain normal rhythm of _____________.
Brain Stem: Medulla Oblongata
• Helps maintain ________
3 other additional roles.
1.
2.
3.
Heart and blood pressure
Respiration
Vomiting, hiccupping, swallowing, coughing, and sneezing
Discussion – Things That Can Go Wrong in the CNS
• Answer this question in your notes:
What causes a stroke? And, if a lesion occurs in the left side of the brain, what side of the body is effected?
Signs of a Strokehttp://video.google.com/videoplay?docid=2519529702578721514&q=signs+of+stroke&total=119&start=0&num=10&so=0&type=search&plindex=0