Endocrine System Flashcards
within the human body involves the transmission of signals to control and coordinate actions in an effort to maintain homeostasis.
communication
Communication within the human body involves the transmission of signals to control and coordinate actions in an effort to maintain
homeostasis
Two major organ systems are responsible for providing these communication pathways;
the nervous and endocrine systems
are sent viathe generation and propagation of action potentials which move along the membrane of a cell.
electrical signals
Once the action potential reaches the synaptic terminal;
the electrical signal is converted to a chemical signalas neurotransmitters are released into the synaptic cleft
When neurotransmittersbind with receptors on the receiving (post-synaptic) cell;
new electrical signal is generated and quickly continues to its destination
enables body functions that involve quick, brief actions, such as movement, sensation, and cognition
neural communication
primarily responsible for rapid communication throughout the body
nervous system
relies on only a single method of communication: chemical signaling
endocrine system
are the chemicals released byendocrine cells that regulateother cells in the body
hormones
are transported primarily via the bloodstream throughout the body, where they bind to receptors on target cells, triggering a response
hormones
chemical signal that elicits a response in the same cell that secreted it
autocrine
tissue or organ that secretes hormones into the blood and lymph without ducts such that they may be transported to organs distant from the site of secretion
endocrine gland
cells, tissues, and organs that secrete hormones as a primary or secondary function and play an integral role in normal bodily processes
endocrine system
cells, tissues, and organs that secrete substances directly to target tissues via glandular ducts
exocrine system
secretion of an endocrine organ that travels via the bloodstream or lymphatics to induce a response in target cells or tissues in another part of the body
hormone
chemical signal that elicits a response in neighboring cells; also called paracrine factor
paracrine system
involved in the information business.
endocrine system
carry essential messages that have far-reaching effects
hormones
control body processes at every level, from the energy uptake of a single cell to the whole body’s rate of growth and development.
endocrine system
sends hormones through the Circulatory system to control and coordinate body functions in much the same way as the nervous system uses tiny electrical signals
endocrine system
work together to integrate into the brain and complement each other, but they tend to work at different speeds.
endocrine and nervous system
respond within split-seconds but their action soon fades
nerves
Hormones regulate processes such as:
a. The breakdown of chemical substances in the metabolism of what we eat and drink
b. Fluid balance and urine production
c. The body’s growth and development
d. Sexual Reproduction