Tissue and Their Types - CONNECTIVE, MUSCLE, AND NERVOUS TISSUE

CONNECTIVE TISSUE

connects cells and tissues together as they form organs

3 COMPONENTS OF CONNECTIVE TISSUE

ECM, Fibers, Cells

LOOSE CONNECTIVE TISSUE

loosely arranged and have no organized structure; composed of thin elastic fibers

DENSE CONNECTIVE TISSUE

tightly packed collagen fibers

DENSE REGULAR CONNECTIVE TISSUE

regular and parallel arrangement of collagen fibers; seen in tendons and ligaments

ACL tear

torn anterior cruciate ligament

DENSE IRREGULAR CONNECTIVE TISSUE

random and irregular orientation; seen in areas where strong binding and support is needed; e.g. dermis of the skin

BLOOD

carries various substances to tissues (erythrocytes, leukocytes, thrombocytes)

HEMOPOIESIS

formation of blood cells that occurs in the bone marrow

CARTILAGE

flexible yet firm; can bear mechanical stress w/o permanent distortion (chondrocytes)

Cartilage in the Spinal Cord

Annulus Fibrosus

BONE

calcium phosphate is deposited within the matrix (osteocytes)

EPIPHYSIS

ends of long bones

DIAPHYSIS

refers to middle shaft

METAPHYSIS

area between diaphysis and epiphysis; also known as epiphyseal plate; where growth occurs

ADIPOSE TISSUE

connective tissue w/ adipocytes: fat-storing cells

MUSCLE TISSUE

for movement and locomotion; most abundant type of tissue (muscle fibers)

SKELETAL MUSCLE

striated and voluntary; has syncytial cells: have more than 1 nuclei

SMOOTH MUSCLE

visceral muscle; involuntary

CARDIAC MUSCLE

striated and involuntary; branched: possess intercalated disks

NERVOUS TISSUE

transmit information from muscle to brain (nerve cells)