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FLORENCE KAKOOZA

HUMAN PHYSIOLOGY WEEK 7-13

QuestionAnswer
Primary function of the digestive system to bring essential nutrients into the internal environment so that they are available to each cell of the body
Chemical synapses use a chemical transmitter called a neurotransmitter to send a signal from the presynaptic cell to the postsynaptic cell
There are two types of synapses—the electrical synapse and the __________ synapse chemical
The speed of a nerve impulse depends on the neuron’s resting potential. False
Which membrane receptor acts to directly change ion permeability when stimulated? Gated-channel receptor
An ion channel that opens in response to a sensory stimulus is a(n stimulus-gated channel.
A synapse consists of: a synaptic knob. a synaptic cleft. the plasma membrane of a postsynaptic neuron. all of the above.
Stimulus-gated channels open in response to sensory stimuli.
Which region of the brain plays a part in the mechanism responsible for emotions by associating sensory impulses with feelings of pleasantness and unpleasantness? thalamus
Which cranial nerve is responsible for the sense of smell? olfactory
The _____ consists of several structures that lie beneath the thalamus and form the floor of the third ventricle and the lower part of its lateral walls hypothalamus
Both sympathetic and parasympathetic divisions are tonically active, which means they continually conduct impulses to autonomic effectors
The cortex is capable of storing and retrieving information from both short-term and long-term memory
The limbic system integrates emotion
The somatic motor system includes all the _____ motor pathways _____ the CNS. voluntary; outside
The second largest part of the brain, located just below the posterior portion of the cerebrum, is the cerebellum
Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate vagus
Which is the only plexus that contains fibers from the thoracic region of the spinal cord? Brachial
A child was frightened by a large dog. The pupils of the child’s eyes became dilated, and the heart and respiratory rates increased. These symptoms were caused by stimulation of: the sympathetic nervous system
The term blood type refers to the type of blood cell antigen
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