Structures of the skeletal system Ch 3 Flashcards Preview

Veterinary Medical Terminology > Structures of the skeletal system Ch 3 > Flashcards

Flashcards in Structures of the skeletal system Ch 3 Deck (43):
1

Bone

A form of connective tissue, is one of the hardest tissues in the body. The skeleton is made up of cartilage and fibrous membranes that harden into bone before birth.

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Ossification

Formation of the bone from fibrous tissue, continues until maturity, which varies with species.

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articular cartilage

specific type of cartilage that covers the joint surfaces of bone

A image thumb
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meniscus

A curved fibrous cartilage found in some joints that cushions forces applied to the joint (found in the canine stifle)

A image thumb
5

Joints or articulations

Connections between the bones. Articulate means to join in a way that allows motion between the parts. Site of junction or union between bones.

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Synarthroses

Joint that allows no movement

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Amphiarthroses

Joint that allows slight movement

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Diarthroses

Joint that allows free movement

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suture

A jagged line where bones join and form a non movable joint

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Fontanelle

Soft spot remaining at the junction of structures that usually closes after birth

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Symphysis or cartilaginous joint

Joint where two bones join and are held firmly together so they function as one bone

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Arthr/o

Joint

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Mandibular Fusion

The halves of the mandilbe that fuse at the symphysis to form one bone

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Pubic Symphysis

The halves of the pelvic bone that fuse at the symphysis to form one bone

15

Synovial Joints

A diathroses joint (Joint that allows free movement) that is a type of ball and socket joint

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Oste/o

bone

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Blasts

Immature

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Osteoblasts

Immature bone cells that produce bony tissue

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Osteoclasts

Phagocytic cells that eat away bony tissue from the medullary cavity of a long bone

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Clasts

break

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Osteocytes

Matured osteoblasts

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Hematopoietic

Red bone marrow, located in cancellous bone

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hemat/o

blood

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-poietic (suffux)

Pertaining to formation

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Medullary Cavity

Cavity of the long bone, or the inner space of bone, that contains yellow bone marrow

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What is yellow bone marrow composed of?

Mostly fat cells that serve as fat storage. (Replaces red bone marrow in adults)

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Cartilage

A form of connective tissue that is more elastic than bone

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Ball and socket joints

Joints that allow a wide range of motion in many directions, such as the hip and shoulder joints

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Arthrodial or Condyloid Joints

A type of ball and socket joint with oval projections that fit into a socket, such as the carpal joints (where the radius meets the carpus)

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Trochoid Joints (or pivot joints)

A type of ball and socket joint that include pulley-shaped joints like the connection between the atlas and the axis

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Hinge Joints

A type of ball and socket joint that allow motion in one plane or direction, such as the canine stifle and the elbow joints)

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Gliding Joints

Ball and socket joints that move and glide over each other, as in the radioulnar joint or the articulating process between successive vertebrae

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The Saddle Joint (found in primates)

A type of ball and socket joint located in the carpometacarpal joint of the thumb. (the saddle joint allows primates to flex, extend, abduct, adduct and circumduct and thumb

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Ligament

A band of fibrous connective tissue that connects one bone to another bone to help stabilize the joints

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Ligament/o (combining form)

Ligament

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Tendon

Band of fibrous tissue that connects muscle to bone to help the animal move

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ten/o, tendin/o, tend/o

Tendon

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Bursa

A fibrous sac that acts as a cushioning to ease movement in areas of friction (example: within the shoulder joint is a bursa where the tendon passes over the bone)

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Burs/o

Bursa (bursea is the plural form)

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Synovial Membrane

The inner lining of the bursae and synovial joints (secretes synovial fluid to help joint movement)

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Synovial Fluid

Fluid secreted from the synovial membrane that acts as a lubricant to make joint movement smooth

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Synovi/o (combining form)

Synovial membrane and synovial fluid

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Clasts

Break

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