Final Jeopardy Question Nervous System Classification Brain Anatomy Nerves Brain protection Brain Anatomy 2 Nerve impulse

Back a.Somatic nervous system b.Autonomic nervous The 2 subdivisions of MOTOR are

Back 1.the central nervous system (brain/spine) 2. muscles / glands Motor (efferent) division carries an impulse from _________ to ________.

Back 1.Nerve fibers or sense organs or “senses” 2.the central nervous system (spine/brain) Sensory (afferent) division carries an impulse from ________ to ________.

Back a.Nerves outside the brain and spinal cord The Peripheral nervous system (PNS) includes:

Back Brain & Spinal cord The Central nervous system (CNS) includes

The sections of sensory & motor regions of the brain and the amount of brain “power” they “supply” to different parts of the body can be visualized using the Back homunculus

The surface of the brain has ridges called _________ and shallow grooves called ___________ Back gyri- (“ji’ re”) & sulci- “(sul’ki”)

Provides coordination of body movements. Takes information for inner ear & the rest of the body Back Cerebellum

Contains important control centers including: a. Heart rate control b. Blood pressure regulation c. Breathing d. Swallowing e. Vomiting Back Medulla Oblongata

Helps regulate body temperature, Controls water balance & Regulates metabolism Back Hypothalamus

A rapid, predictable, and involuntary responses to stimuli is called a Back reflex

Grey matter is found where in the brain? Back Outer layers

The Broca’s area is involved in our ability to _____________ & is located on the _____ side of the brain only. Back Speak / left

Fissures (deep grooves) divide the cerebrum into how many lobes? Back Four (4)

The largest part of your brain is called the Back cerebrum

Brain has the least permeable capillaries of the body which causes Back Brain-blood barrier

Attaches the Meningeal layer to the brain & is web-like Back Arachnoid layer

The general name of the coverings of the brain Back Meninges

Cerebrospinal fluid is similar in composition to Back Blood plasma

This forms a watery cushion to protect the brain Back Cerebrospinal fluid

Back Irritability The ability to respond to stimuli & convert to a nerve impulse is called

Back Depolarization The exchange of ions which initiates an action potential in the neuron

Back myelin sheath Impulses travel faster when fibers have a…

Once the Nerve Impulse reaches the axon terminal neurotransmitters are released across the Back Synapse / synaptic gap/ cleft

The nerve impulse is also known as Back Action potential

Spider-like phagocytes which Dispose of debris Back Microglia or glia

Name the types of cells that cover a nerve cell to increase the speed of the nerve impulse Back Schwann cell

In a neuron this passes the message on Back axon

Back dendrite In a neuron this part brings the message in

The function of a neuron is to… Transfer impulses or messages Back

The AUTONOMIC branch of the nervous system has two (2) subdivisions, what are they?