Shared Flashcard Set

Details

body organization and skeletal
test
33
Science
7th Grade
03/01/2012

Additional Science Flashcards

 


 

Cards

Term
5 levels of organization in the body
Definition
cell--tissue--organ--organ system--organism
Term
cell
Definition
basic unit of life
Term
tissue
Definition
group of similar cells
Term
organ
Definition
two or more tissues working together
Term
organ system
Definition
2 or more organs working together
Term
organism
Definition
composed of organ systems
Term
four types of tissues and their function
Definition

muscle: movement

epithelial: protection

nervous: send/receive messages

connective: connect and support

Term
5 functions of skeleton
Definition

protection

movement

production of red blood cells

support

stores minerals: calcium and phosphorous

 

Term
skeleton parts that protect our organs
Definition

cranium/skull: brain

ribs: lungs, heart

Term
materials body stores in the skeleton
Definition

fat

red blood cells

Term
osteoporosis
Definition
disease that causes bones to become less dense
Term
arthritis
Definition
affects joints and causes them to swell and stiffin
Term
how many bones are in an adult human?
Definition
206
Term
cartilage
Definition

cushions joints and prevents rubbing of bones

 

skeleton of a baby is made up of mostly cartilage

Term
joint
Definition
place where bones meet
Term
ligament
Definition
stringy connective tissue that holds bones together
Term
tendons
Definition
connective tissue that holds muscles to bones
Term
bursa sac
Definition
sac filled with lubricating fluid
Term
hinge joint
Definition

moves back and forth

 

knee and elbow

Term
pivot joint
Definition

one bone rotates around another

 

neck and forearm

Term
ball and socket
Definition

moves in circular motion

 

hip and shoulder

Term
gliding joint
Definition

bones that slide over eachother

 

wrist and ankle

Term
immovable joint
Definition

bones do not move

 

skull

Term
cardiac tissue
Definition

1. found in the heart

2. striated

3. involuntary

Term
smooth tissue
Definition

1. found in walls of stomach and small intestine

2. non-striated

3. Involuntary

Term
skeletal tissue
Definition

1. tricep and bicep

2. striated

voluntary

Term
What muscles fatigue? How fast?
Definition

skeletal: tires quickly

smooth: tires slowly

Term
flexors/extensors: how do muscles work in pairs?
Definition
bicep is hte flexor and it bends the arm, tricep is the extensor and it straightens the arm
Term
integumentary System: Made up of what?
Definition
skin, hair, and nails
Term
epidermis
Definition
top layer of skin
Term
dermis
Definition
inner layer which contains blood vessels, nerves, muscles, sweat glands, hair roots
Term
functions of skin
Definition
protects us, regulate body temperature, allows water in and prevents particles from entering, waste leaves through sweat
Term
how can you keep skin healthy?
Definition
drink water, good diet, sunscreen, washing daily, stay out of sun from 11-2
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