with Answers
Organ - correct answers>>discrete structure composed of at least two tissue types (usually all four) that
performs a specific function for the body
Tissue types - correct answers>>epithelial, connective, muscle, nervous
integumentary system - correct answers>>skin, hair, nails
skeletal system - correct answers>>Protects and supports body organs and provides a framework the
muscles use to support movement. Forms blood cells, stores minerals. Made of bones and joints.
Muscular system - correct answers>>Allows manipulation of the environment, locomotion, and facial
expression. Maintains posture, and produces heat.
nervous system - correct answers>>fast-acting control system of the body; responds to internal and
external changes by activating appropriate muscles and glands
endocrine system - correct answers>>Glands secrete hormones that regulate processes such as growth,
reproduction, and nutrient use (metabolism) by body cells.
cardiovascular system - correct answers>>Blood vessels transport blood, which carries oxygen, carbon
dioxide, nutrients, wastes, etc. The heart pumps blood.
lymphatic system - correct answers>>Picks up fluid leaked from blood vessels and returns it to blood.
Disposes of debris in the lymphatic stream. Houses white blood cells involved in immunity.
Respiratory system - correct answers>>Keeps blood constantly supplied with oxygen and removes carbon
dioxide. The gaseous exchanges occur through the walls of the air sacs of the lungs.
Digestive system - correct answers>>Breaks down food into absorbable units that enter the blood for
distribution to body cells. Indigestible foodstuffs are eliminated as feces.
, urinary system - correct answers>>Eliminates nitrogenous wastes from the body. Regulates water,
electrolyte and acid-base balance of the blood.
male reproductive system - correct answers>>Overall function is production of offspring. Testes produce
sperm and male sex hormone, and male ducts and glands aid in delivery of sperm to the female
reproductive tract.
female reproductive system - correct answers>>Overall function is production of offspring. Ovaries
produce eggs and female sex hormones. The remaining female structures serve as sites for fertilization
and development of the fetus. Mammary glands of female breasts produce milk to nourish the newborn.
Necessary life functions - correct answers>>maintain boundaries, movement, responsiveness, digestion,
metabolism, excretion, reproduction, growth
Survival needs - correct answers>>nutrients, oxygen, water, normal body temperature, appropriate
atmospheric pressure
Homeostasis - correct answers>>The ability of an organism or cell to maintain equilibrium by adjusting
its physiological processes in order to function properly given external conditions
Receptor (Homeostatic Control) - correct answers>>Monitors the environment, responds to stimuli by
sending input along afferent pathway to the control center
Control center (homeostatic control) - correct answers>>Determines set point, analyzes input it receives,
output flows from the control center along the efferent pathway to the effector
Effector - correct answers>>provides the means for the control center's response to the stimulus,
produces feedback to influence the effect of stimulus
Negative feedback mechanism - correct answers>>The most common homeostatic control mechanism.
The net effect is that the output of the system shuts off the original stimulus or reduces its intensity.