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LS Chap. 14 Bones, Muscles, and Skin

Chapter 14 Vocabulary Test
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Cell
the basic unit of structure and function in a living thing
Tissue
a group of cells that perform a function
Types of tissue
Muscle tissue- must contract and shorten_ Nervous Tissue- directs and controls movements_ Connective Tissue- provides support in your body_ Epithelial Tissue- protects body
Organ
a structure composed of tissue
Organ System
a group of organs that work together to perform a function
Skeleton
made up of all bones in a body
Vertebrae
made of 26 smaller bones(backbone)
Joint
a place in the body where 2 bones come together
Ligament
a strong connective tissue that holds the bones in movable joints together
Cartilage
another type of connective tissue that is more flexible then bone and covers the ends of the bones and keeps them from rubbing against each other
Compact Bone
located under the bones membrane and is hard and dense, but not exactly solid
Spongy Bone
has small spaces in it and is lightweight but very strong
Marrow
Red- produces most of the body's blood cells_Yellow- stores fat that can serve as an energy reserve
Sprain
occurs when a ligament is stretched too far and tear in places
Dislocation
occurs when the bone comes out of its joint
Fracture
a break in a bone
X-ray
a form of energy that travels in waves
MRI (Magnetic Resonance Imaging)
a method for taking clear images of both bones and soft tissues of the body
Involuntary Muscles
responsible for such essential activities like breathing and digesting food; cannot control these muscles
Voluntary Muscles
under your conscious control
Skeletal Muscles
attatched to the bones of your skeleton and provides force that move your bones
Tendon
a strong connective tissue that connects muscles to bone
Striated Muscle
another word for Skeletal Muscles
Smooth Muscles
are in internal organs like the stomach and blood vessels
Cardiac Muscles
found only in heart
cell membrane
forms the outside boundary of the cell
nucleus
control center that directs the cell's activities and contains genetic information.
muscle tissue
can contract or shorten
nervous tissue
carries electrical messages back and forth in the body
connective tissue
provides support and attaches all the body parts
epithelial tissue
skin is an example and it protects whiat lies beneath it.
homeostasis
body's tendency to keep an internal balance
stress
the reaction of your body to potentially threatening, challenging, or disturbing events
immovable joint
also called fixed. Connects bones that allow very little to no movement such as in the skull
tendon
connective tissue that holds muscles to bone
hinge joint
type of joint found in the knee, elbow, toes, and fingers
ball and socket joint
type of joint found in the shoulder and hip
pivot joint
type of joint found in the neck
gliding joint
type of joint found in the wrist and ankle
osteoperosis
a condition where the body's bones become weak and break easily
skin functions
protection, water loss prevention, regulate body temperature, eliminate wastes, gather information about the environment, and produce vitamin D
Vitamin D
made in sunlight by skin and aids in calcium absorption from food to your body
epidermis
outer layer of skin
dermis
inner layer of skin
pores
opening in the skin to release perspiration, oil, and other wastes
follicle
hair strands in the dermis
melanoma
a type of skin cancer caused by UV rays of the sun
compound fracture
a break in the bone where the bone pokes through the skin
simple fracture
a complete break in the bone
hairline fracture
a crack in the bone. Bone is not broken into two.