intro to A & P quiz 1 Flashcards
Anatomy:
study of the structure of an organism
Physiology:
study of how that organism’s body functions
Cell:
smallest unit of all living organisms
Organ:
made up of two or more kinds of tissues
Organ system:
groups of organs working towards a common goal
Organism:
highest level of organization for an individual organism
Excretory:
removes waste from blood; uses kidneys, bladder, ureters, and urethra
Skeletal:
provides support and protection and gives the body shape; uses bones, ligaments, cartilage, and joints
Nervous:
detects impulses from senses; control center; uses brain, spinal cord, senses, nerves
Cardiovascular:
transport nutrients and gasses around the body; uses heart, blood vessels, and blood
Respiratory:
Exchange of gasses (oxygen and carbon dioxide); uses lungs, sinuses, diaphragm
Digestive:
breaks down and absorbs food; uses mouth, esophagus, stomach, intestines, liver, gallbladder
Muscular:
to provide movement for your body; uses skeletal and smooth muscles
integumentary:
protecting body, regulate body temp, prevent water loss; uses skin, hair, nails
lymphatic:
fights infections and provides fluid for cells; uses spleen, thymus gland, lymphatic vessels, lymph nodes
endocrine:
secretes hormones; uses glands
reproductive:
produces cells used in sexual reproduction; uses ovaries, vag, uterus, mammary glands, and male versions of all
11 systems made of:
cells, tissues, organs
necessary life functions
maintaining boundaries, movement, responsiveness, digestion, metabolism, excretion, reproduction, growth
maintaining boundaries
lets some substances in and keeps others out (ex: skin protects, absorbs, and keeps in water, which preventing entry of pathogens
movement
internal movements (ex: digestive contractions) and ability to move through surroundings
responsiveness
sensing and reacting to changes in environment (ex: pain felt when finger is cut with knife)
digestion
breaking down and absorbing nutrients
metabolism
building larger molecules from smaller ones (anabolism) and breaking down of larger molecules into smaller ones (catabolism)
excretion
removal of wastes (ex: urine, sweat)
reproduction
production of offspring
growth
increase in cell size or overall body size
survival needs
nutrients, oxygen, normal body temp, water, normal atmospheric pressure
SN: nutrients
through digestion and metabolism
SN: oxygen
through heart and lungs
SN: normal body temp
through skin, blood, muscles
SN: water
allows molecules to move through the body
SN: normal atp
provides appropriate gas exchange between lungs and environment
distal
down from
proximal
up from
dorsal body cavity
brain, spinal cord
ventral body cavity
thoracic, abdominal, and pelvic
three layers- inner: visceral serosa, outer: parietal serosa, inside: serous fluid
abdominal cavity (ventral)
categorized into quadrants or regions, (right upper quadrant, left upper quadrant, right lower quadrant, left lower quadrant) (R hypochrondric region, epigastric region, L hypo, R lumbar, umbilical region, L lumbar, R iliac, hypogastric, L iliac)