BIO 24 - Chapter 8
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BIO 24 - Chapter 8
The part of the brain that initiates voluntary movement is the?
Neurons that carry impulses from receptors to the CNS are called?
The cranial nerve tat decreases heart rate is the?
The part of the brain that regulates heart rate and blood pressure is the?
Cerebrospinal fluid is formed by?
The gray matter on the surface of the cerebral hemispheres is called?
Neurons are electricaly insulated by the presence of the?
The part of the brain that regulates body temperature and the autonomic nervous sytem is the?
During depolarization of a neuron, sodum ions do what?
They rush into the cell
The spinal nerve root that is made of sensory neurons is the?
The part of a neuron that carries impulses away from the cell body is the?
At a synapse, a nerve impulse is carried by what?
A neurotransmitter, which is a chemical released by the synaptic knob (Terminal end)
The lobes of the cerebral cortex that contain the areas for cutaneous sensation are the?
Within the spinal cord, the cell bodies of motor neurons are contained within the?
what is a reflix?
an involuntary response to a stimulus
Keeping the body upright is the purpose of the?
The two cerebral hemispheres are connected by the?
Which part of the brain regulates muscle tone and coordination
The cranial nerve for hearing and equilibrium is the?
List the spinal nerve group from top to bottom?
8 - Cervical
12 - Thoracic
5 - Lumbar
5 - Sacral
1 - Coccygeal
The cerebral cortex is made of the same parts of neurons as the?
Gray matter of the spinal cord
What is the descending tracts of the spinal cord made of and what do they do?
White matter which carries impusles away from the brain
Preventing prolonged contact with harmful stimuli is the function of what?
The blood-brain barrier is formed by anatomic features of the?
Brain capillaries and astrocytes
The myelin sheath of CNS neurons is made by the?
The visual areas of the brain are in the?
The parts of the brain that regulate accessory movements (such as gestures when speaking) are the?