Chapter 3 Primary Words Flashcards
Ossification
Membranes and cartilage turn into bone, forms bones, 3 months old
Periosteum
(pher-ee-OSS-tee-um)
Tough fibrous tissue that forms the outermost covering of bone
Peri means surrounding, -oste means bone
Compact Bone
Cortical Bone
Dense, hard, and very strong bone that forms the protective layer of bones
Spongy Bone
Cancellous Bone
Porous, lighter and weaker than compact bone
Medullary Cavity
Central cavity located in the shaft of long bones, surrounded by compact bone
Endosteum
Tissue that lines the medullary cavity
End means within, oste means bone, -um is a noun ending
Hematopoietic
Pertaining to the formation of blood cells
Red Bone Marrow
Hematopoietic tissue that manufactures red blood cells, hemoglobin, white blood cells, and thrombocytes
Yellow Bone Marrow
Fat storage area
Cartilage
Smooth, rubbery, blue-white connective tissue that acts as a shock absorber
Articular Cartilage
Covers the surface of bones where they come together, to form joints
Meniscus
Curved, fibrous cartilage found in some joints like the knee
Diaphysis
The shaft of a long bone
Epiphyses
(ep-PIF-ih-seez)
Wider ends of long bones like the femurs of the leg
Foramen
An opening in a bone through which blood vessels, nerves, and ligaments pass
Process
Normal projection on the surface of the bone that most commonly serves as an attachment for a muscle or tendon
Joints
Articulations
Place of union between two or more bones
Fibrous Joints
Consisting of inflexible layers of dense connective tissue, holds bones tightly together
Fontanelles
Soft spots
Normally present on skulls of newborns, felible, soft spots so they can be birthed
Cartilaginous Joints
Allow only slight movement and consist of bones connected entirely by cartilage
Pubic Symphysis
Allows some movement to facilitate childbirth
Synovial Joint
Created where two bones articulate to permit a variety of motions
Ball and socket Joints
Hips or shoulders, allow wide range of motion
Hinge Joints
Knees or elbows, allow movement in primarily one direction or plane
Synovial Capsule
Outermost layer of strong fibrous tissue that resembles a sleeve as it surrounds the joint
Synovial Membrane
Lines the capsule and secretes synovial fluid
Synovial Fluid
Flows within the synovial cavity, acts as lubricant to make smooth movements
Ligament
Bands of fibrous tissue that form joints by connecting one bone to another bone or joining bone to cartilage
Bursa
Fibrous sac that acts as a cushion to ease movement in areas that are subject to friction
Shoulder, elbow, knee
Axial Skeleton
Protects the major organs of the nervous, respiratory, and circulatory systems
Appendicular Skeleton
Makes body movement possible and also protects the organs of digestion, excretion, and reproduction
Appendicular means refering to appendage
Skull
Consists of 8 bones that form the cranium, 14 bones that form the face, and 6 boness in the middle ear
Cranium
Portion of the skull that encloses and protects the brain
Crani means skull, um is a noun ending
Frontal Bone
Anterior portion of the cranium that forms the forehead, hoses the frontal sinuses and roof of the ethmoid sinuses, nose, and eye sockets
Parietal Bones
Two of the largest bones of the skull
Occipital Bone
Forms the back art of the skull and base of the cranium
Temporal Bones
Form the sides and base of the cranium
External Auditory Meatus
Opening of the external auditory canal of the outer ear
Meatus is the external opening of a canal
Sphenoid
Irregular wedge shaped bone at the base of the skull
Ethmoid Bone
Light, spongy bone located at the roof and sides of the nose
Auditory Ossicles
Three tiny bones located in each middle ear
Nasal Bones
Form the upper part of the bridge of the nose
Zygomatic Bones
Cheekbones, articulate with the frontal bone that makes up the forehead
Maxillary Bones
Form most of the upper jaw
Palatine Bones
Form the anterior part of the hard palate of the mouth and the floor of the nose
Lacrimal Bones
Make up part of the orbit (eye socket) at the inner angle
Inferior Conchae
Thin, scroll like bones that form part of the interior of the nose
Vomer Bone
Forms the base for the nasal spetum
Mandible
Jawbone, only movable bone of the skull
Temporomandibular Joint
TMJ
Thoracic Cavity
Rib cage, bony structure that protects the heart and lungs
Ribs
Costals
First seven are true ribs, Next 3 are* false ribs*, Last two are floating ribs
Cost means rib, -al means pertaining to
Sternum
Breast Bone
Flat, dagger shaped bone located in the middle of the chest
Manubrium
Bony structure that forms the upper portion of the sternum
Gladiolus
Body of the sternum
Bony structure that forms the middle portion of the sternum
Xiphoid Process
Structure made of cartilage that forms the lower portion of the sternum
Pectoral Girdle
Shoulder Girdle
Supports the arms and hands
Clavicle
Collarbone
Slender bone that conects the manubrium of the sternum to the scapula
Scapula
Known as the shoulder blade
Acromion
Extension of the scapula that forms the high point of the shoulder
Humerus
Bone of the upper arm
Radius
Smaller and shorter bone in the forearm
Ulna
Larger and longer bone of the forearm
Olecranon
Funny Bone
Large, proximal tip of the ulna, forms the point of the elbow and exposes a nerve
Carpals
Bones that form the wrists
Metacarpals
Five bones that form the palms of the hand
Phalanges
14 bones of the fingers