Flashcards in Human Body Unit Test Deck (40):
1
Describe the Integumentary System
organ system that provides a protective covering around the body (skin, hair, nails)
2
describe the muscular system
primary function is movement and flexibility
3
describe the skeletal system
primary function is to support, protect, and allow body to move
4
describe the cardiovascular and circulatory systems
transports blood throughout the body
5
describe the respiratory system
takes in oxygen and expels carbon dioxide
6
describe the nervous system
sends electrical signals throughout the body
7
describe the digestive system
group of organs that digest food
8
describe the lymphatic system
collects extracellular fluid and returns it to the blood
9
define homeostasis
the maintenance of a constant internal state in changing environment
10
describe bones protect
different structures protect vital internal organs such as the lungs, heart, and kidney
11
describe what storage has to do with bones
bones store minerals that help your nerves and muscles and fat that can be used for energy
12
describe how muscles help you move
skeletal muscles pull on bones to produce movement
13
describe what bones have to do with blood cell formation
some bones contain marrow that produces blood cells
14
describe gliding joint
allows bones to glide over one another with some flexibility (hand+wrist)
15
describe ball-and-socket joints
lets you move freely in all directions (hips+shoulders)
16
describe hinge joints
ability to open and close like a door (knee, elbow)
17
describe skeletal muscle
enables bone movement (bicep, tricep)
18
describe smooth muscle
moves food through digestive system (stomach)
19
describe cardiac muscle
pumps blood throughout body (heart)
20
describe flexors
bends part of your body
21
describe extensors
straightens part of your body
22
aerobic exercise
strengthens heart and endurance: swimming, joggling, cycling
23
resistance exercise
working against the weight of an object (curl-ups)
24
how does skin protect?
keeps water in and foreign particles out
25
how does skin help with touch?
nerve endings in skin let you feel things
26
what does skin have to do with body temp.?
sweat glands regulate body temperature
27
how does skin help with waste removal?
waste chemicals can be removed in sweat
28
describe the epidermis
surface layer of cells on a plant or animal, keratin within cells
29
describe the dermis
layer below epidermis, fibers within called collagen
30
describe the heart
main muscle that pumps blood throughout the body
31
describe veins
vessel that carries blood to the heart
32
describe arteries
vessel that carries blood away from the heart
33
describe capillaries
tiny vessel that allows exchange between cells in tissue
34
pulmonary circulation
between heart and lungs
35
systemic circulation
between heart and rest of body
36
describe the pharynx
passage from the mouth to the larynx and esophagus
37
describe the larynx
area of the throat that contains vocal cords and produces vocal sounds
38
describe the trachea
tube that connects the larynx to the lungs
39
describe the bronchus
one of two tubes that connect lungs with the trachea
40