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45 Cards in this Set

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Fibrous Joints

Bones held together by fibrous CT

Cartilaginous Joints

Joints held together by cartilage

Synovial Joints

Bones held together by ligaments

Synarthrosis

An immovable joint

Amphiarthrosis

Slightly movable joint

Diarthrosis

Freely movable joint

What are the 3 types of fibrous joints?

Sutures, Soundemesos, Gomphoses

Sutures

Occur only between the bones of the skull

Syndesmoses

Permits slight movement with more fibrous CT


Example is between the tibia and fibula

Gomphoses

Immovable joint


Is cone shaped like a peg and fits into a socket


An example is the teeth in the mandible and maxillae

What are the 2 types of cartilaginous joints?

Synchondroses, Symphyses

Synchondroses

The connecting tissue is hyaline cartilage


Example is the epipyseal plate

Symphyses

Slightly movable


Disc of fibrocartilage connects the bones


Example is intervertebral discs

Articular Capsule

A sleeve like capsule that encloses the synovial cavity

Synovial Fluid

Secreted by synovial membrane


Functions:


Lubrication


Shock absorption


Supplying O2 and nutrients to cartilage


Removing wastes from cartilage

Bursae

Sac like structures containing synovial fluid that is located between tendons, ligaments, and bones that provides cushion.

Tendon Sheaths

Wraps around the tendon and helps reduce friction.

Planar Joint

Permits back and forth and side to side movements


Found in intercarpal joints

Hinge Joints

Produce an opening and closing motions that permints only extension and flexion


Found in knee and elbow

Pivot joints

Surface of one bone articulates with a ring formed partly by another bone and a ligament


Causes rotational rotational movement

Condyloid joints

Oval projection of one joint fits into the oval depression of another


Permits flexion, extension, abduction, adduction, and circumduction


Found in metacarpophalyngeal joints

Saddle Joints

Permits flexion, extension, abduction, adduction, and circumduction


Found in carpometacarpal joints

Ball and socket joints

Permits flexion, extension, abduction, adduction, rotation, and circumduction


Found in the shoulder and hip

Skeletal Muscle Tissue

Voluntary


Striated

Cardiac Muscle Tissue

Involuntary


Striated

Smooth Muscle Tissue

No striations


Involuntary

Excitability

Ability to respond to stimuli by producing action potential (nerve impulse)

Contractibility

Ability to contract forcefully when stimulated to generate force

Extensibility

Ability to stretch without being damaged

Elasticity

Ability to return to original length after contraction/extension

Fascia (bandage)

Dense sheet or broad band of irregular CT that surround muscles

Superficial fascia

Seperate muscles from skin, and protect against trauma

Deep fascia

Group muscles and fills in spaces between them

Epimysium

Outermost layer that covers entire muscle


Seperates 10-100 muscle fibers into bundles called fascicles

Perimysium

Surrounds individual fascicles

Endomysium

Seperates individual muscle fibers from one another

Satellite Cells

Regenerate damaged muscle fibers

T or F? The number of skeletal muscle fibers is set before you are born.

True

Sarcolemma

The plasma membrane of a muscle cell

Transverse (T tubules)

Tunnel in from the plasma membrane and spreads muscle action potential to all parts of the muscle

Sarcoplasm

The cytoplasm of a muscle fiber

Myofibrils

Thrwad like structures which have a contractile function

Scaroplasmic Reticulum (SR)

Membranous sacs which encircles each myofibril


Stores calcium ions, the release of them triggers muscle contraction

Filaments

Function in contractile process

Sacromeres

Basic functional unit of a myofibril