Which activities involved what parts of the brain?1 – frontal, 2 – temporal, 3 – parietal, 4 – occipital
What two glands connect the nervous system with the endocrine system? (hypothalamus and pituitary gland)
Meningitis can lead to serious long-term consequences such as deafness, epilepsy, hydrocephalus and cognitive deficits, especially if not treated quickly.Some forms, usually bacterial, may be prevented by immunization
What does the CSF do?
What is a consideration when doing a lumbar puncture?What is meningitis?
Sensory MotorWhite matter vs. grey matter
9.3 the brain
Section 9.3Pgs. 427-434
We are learning to… Describe the anatomy of the nervous system. Explain the mechanisms that enable the body to maintain homeostasis by understanding the physiology of the nervous system.
Activities1. Cocktail party – circulate with others Talk about the weather, school, gossip, biology2. Memory Challenge3. Say the Word, not the Colour
The Central Nervous System (CNS) CNS = Brain + Spinal Cord
SC 41: Label the parts of the brain and describe the function of each The Cerebrum (pg. 429)
SC 41: Label the parts of the brain and describe the function of each Motor Cortex
SC 41: Label the parts of the brain and describe the function of each Summary (pg. 429)
Nervous/Endocrine Connection Below the cerebrum is the thalamus Below the thalamus is the hypothalamus A direct connection between the hypothalamus and the pituitary gland unites the nervous system with the endocrine system
Midbrain The midbrain is less developed than the forebrain Acts as a relay centre for some eye and ear reflexes
Hindbrain Cerebellum - controls limb movements, balance, and muscle tone Pons (bridge) - a relay station that passes information between the two regions of the cerebellum and between the cerebellum and the medulla Medulla oblongata - acts as the connection between the peripheral and central nervous systems; also acts as coordinating centre for the autonomic nervous system Controls involuntary muscle movement… such as? Heart rate, breathing, vessel diameter,
Brain Structure The Brain is covered by a three-layer protective membrane known as the meninges Outer layer = dura mater Middle layer = arachnoid mater Inner layer = pia mater These three layers form the blood-brain barrier, determining what chemicals will reach the brain
SC 40: Discuss the relationship between the CNS and meningitis Meningitis Bacterial or viral infection of the meninges Symptoms include: Intense headache Stiff neck Fever, confusion Vomiting Medical emergency - can lead to death if untreated
Cerebro Spinal Fluid (CSF) Cerebrospinal fluid circulates between the innermost and middle meninges of the brain and through the central canal of the spinal cord Shock absorber Transport medium, carrying nutrients to brain cells while relaying wastes from the cells to the blood
This Oneextract cerebrospinal fluid from the Physicians can Goes to 11… spinal cord to diagnose bacterial or viral infection. The technique, referred to as a lumbar puncture or spinal tap, is used to identify poliomyelitis and meningitis