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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

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

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