Hiset science Questions and Answers|Latest
Update
tissues Groups of cells with a common structure and function.
organs Tissues are organized into:, group of tissues that work together to perform closely
related functions.
organ systems A group of organs that work together in performing vital body functions.
brain The mass of nerve tissue that is the main control center of the nervous system
nerves bundled axons that form neural "cables" connecting the central nervous system
with muscles, glands, and sense organs
Synapse the junction between the axon tip of the sending neuron and the dendrite or cell
body of the receiving neuron
,Neurotransmitters chemical messengers that cross the synaptic gaps between neurons
hormones chemical messengers that are manufactured by the endocrine glands, travel
through the bloodstream, and affect other tissues
sympathetic nervous system the division of the autonomic nervous system that arouses
the body, mobilizing its energy in stressful situations
parasympathetic nervous system the division of the autonomic nervous system that
calms the body, conserving its energy
Epinephrine Neurotransmitter secreted by the adrenal medulla in response to stress.
Also known as adrenaline.
blood Connective tissue made of plasma, erythrocytes, leukocytes, and platelets.
heart A hollow, muscular organ that pumps blood throughout the body.
, atrium upper chamber of the heart
ventricle lower chamber of the heart
Arteries carry blood away from the heart
Capillaries Microscopic vessel through which exchanges take place between the blood
and cells of the body
lypmh the remaining 10% of the returning interstitial fluid. clear, watery fluid containing
electrolytes and proteins.
saliva The fluid released when the mouth waters that plays an important role in both
mechanical and chemical digestion
Esophagus A muscular tube that connects the mouth to the stomach.
Update
tissues Groups of cells with a common structure and function.
organs Tissues are organized into:, group of tissues that work together to perform closely
related functions.
organ systems A group of organs that work together in performing vital body functions.
brain The mass of nerve tissue that is the main control center of the nervous system
nerves bundled axons that form neural "cables" connecting the central nervous system
with muscles, glands, and sense organs
Synapse the junction between the axon tip of the sending neuron and the dendrite or cell
body of the receiving neuron
,Neurotransmitters chemical messengers that cross the synaptic gaps between neurons
hormones chemical messengers that are manufactured by the endocrine glands, travel
through the bloodstream, and affect other tissues
sympathetic nervous system the division of the autonomic nervous system that arouses
the body, mobilizing its energy in stressful situations
parasympathetic nervous system the division of the autonomic nervous system that
calms the body, conserving its energy
Epinephrine Neurotransmitter secreted by the adrenal medulla in response to stress.
Also known as adrenaline.
blood Connective tissue made of plasma, erythrocytes, leukocytes, and platelets.
heart A hollow, muscular organ that pumps blood throughout the body.
, atrium upper chamber of the heart
ventricle lower chamber of the heart
Arteries carry blood away from the heart
Capillaries Microscopic vessel through which exchanges take place between the blood
and cells of the body
lypmh the remaining 10% of the returning interstitial fluid. clear, watery fluid containing
electrolytes and proteins.
saliva The fluid released when the mouth waters that plays an important role in both
mechanical and chemical digestion
Esophagus A muscular tube that connects the mouth to the stomach.
