Examlex
What is the impact of economic conditions on African American family life? Discuss how employment, education, and income affect family stability, single parenthood, divorce, and teen pregnancy.
Secondary Receptors
Protein molecules located on cell surfaces or within cells that bind to external signaling molecules after they have interacted with primary receptors, often amplifying the cellular response.
Chemoreceptors
Sensory receptors that respond to chemical stimuli, such as taste, smell, or changes in the blood's chemical composition.
Brainstem
The lower extension of the brain, connecting the cerebrum with the spinal cord, and controlling vital functions such as breathing and heart rate.
Cranial Nerves
Twelve pairs of nerves that are connected directly to the brain or brainstem and are responsible for motor and sensory functions of the head and neck.
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