81 terms


define skin
the largest organ in the body
functions of the skin
helps regulate the body temp.
help protect the body from pathogens
what are the skin layers
subcutaneous layer
define the epidermis
the outer most layer
stratum corneum, stratum lucidem, stratum granulosum, stratum gerinmatum
in what epidermis stratum are the dead cells
strarum corneum
in what stratum are the melanocytes
stratum germitnativum
in what layer of skin are the cells capable of mitosis?
dermis stratum basal
how is the dermis composed
hair follicles, sweat glands, sebasous, connective tissue
what is the subcutaneous or hypodermis composition
cushouning and fat cells
namecells are the skin accessory organs?
sebaceous glands
sweat glands
describe the nail characteristics
name the nail protein
name the hair parts
hair shaft
hair root
hair papilla
erected pilli muscle
the protein that is composed the in the hair fibers
what gives the color to the hair
what release the sebaceous gland into the hair follicle
where are the sensory receptors location
located in the nerves
what do the sensory receptors detect
theydetects hey detect traction
and pain
define melanocytes
a cell in the skin that produces the pigment melanin
what is the most common skin cancer
basal cell carcinoma
how to prevent the skin cancer
stay out of the sun from 10 - 3
Ch 21
Define atoms
The simplistic unit of matter
Define element
Includes; protons,neutrons, and electrons
Define molecues
2 or more atoms
Define cells
Basic unit of life
Define tissues
A group of cells that share the same function
Define organs
Groups of tissues that have the same fiction
Define systems
Groups of organs that have the same funtions
What is the organ that keep the electrolytes concentration in the blood
How the cell uses the elctrolytes
They dissolves in water or other body fluids
What are electrolyte fucntions across the
Electolytes break down into ions which is either negative (cathode) or positive (anode)
Name all the cell organelle and there functions
Mitochondria: produce energy
Lysosomes: remove unwanted substances
Golgi apparatus: saclike that sorts and transports proteins

Rough ER: occurs in protien synthesis
Has ribosomes

Smooth ER: contains lipids steroids synthesis
Define cytoplasm
Cytoplasm: 80% water also a jelly like gel
Name all 3 types of tissues
Epithelal tissue
Connective tissue
Muscle tissue
Nerve tissue
Where use the epithelial tissue found
Found in the outer layer of the skin, covering the surface of organs and lining the walls of body cavities
Where is the connective tissue found
Gel like between cells
How many muscle tissues are there?
Define neuron
Neurons: transmits impulses to the CNS centeral nervous system
What is the skeleton function
Provides shape, framework, also supports the body
Define axial
Axial: 80 bones tha do not move
Ex: rib cage
Define appendicular skeleton
Appendicular skeleton: 126 bones that move
ex: extremities
How many bones does the human
How any bones do the axial skeleton have
How many bones do the appendicular skeleton have?
What are the bones classification
Long, short, flat, irregular, sesmoid, suteral
Name all the bones in the vertebra column
Cervical 7, thoraxic 12, lumbar 5
What is the bone formation
Osification is the bone formation
Define joints
A place where 2 bones connect also called articulation
What are the joints that produce movements
What are the joints that produce no movements
Define abduction
Far from the middle
Define adduction
Close to the middle
Define Circumduction
moving in Circular motion
Define dorsiflexion
Process of bending the body backward
Define eversion
The process of turning outward
Define extension
Straightning a flexed limb
Define inversion
The process of turning inward
Define flexion
The process of of bending
Define pronation
Facing downward in position
Define protraction
Moving a body part foward
Define retraction
Moving a body part backward
Define rotation
Moving a body part around a central axis
Define supernation
Facing up in position
Define osteocytes
The mature bone cell
Define osteoperosis
Progressive loss of bone density and thining of the bone tissue
Define muscle
Make up about 42 % of a persons weight made of specialized cells called muscle fibers resonsible for nearly all movements
How many muscles does the human body have
how many types of muscles do we have? explain
3 cardiac,skelital, and smooth
define smooth muscle
invonluntary, cannot move
what is the muscular system?
what is oxygen debt
can not absorb oxygen and unable to produce energy
what is muscle fatigue
muscle ability to contractmuscle cramps
what is epymyisuim
thin fascia covering the muscle
what is endopium
surrounds the individual muscle cell
what is agonist
the primary actor in the given movement
what is the antagonist
counter acts or opposes the action of another muscle
what is syrgenist
act with another muscle
what are the muscles of the head
sternoicleidmastoid,splenius capitus,plytsma
what are the muscles of the arm and forearm
pectoralis major latissimys dorsi, deltoid,serratus, anterior, subcapularis, infraspinatus, biceps brachii, brachiolis, supinator, and pronators
what are the muscles of the wrist hand and fingers
fleors, carpiradials, palmaris longous,extensor corpiradials longus andd extensor carpi radialis bravis