Skeletal System Flashcards
Axial Skeleton
Head and trunk of vertebrate
Supports the upright position and protects internal organs
Appendicular Skeleton(126 bones)
Aid in the movement of the body(Armrs, forearms,hands)
How many bones are in Axial Skeleton?
80 bones
Skull, vertebrate, rib cage, and sternum
How many bones are in appendicular skeleton?
126 bones
Pectoral girdle, arms, forearms, hands, pelvis, legs, feet, and ankles
Total bones in human body?
206
Functions of the Skeletal System
Support and protection
Body Movement
Produces blood cells
Storage of minerals and fats
Epiphysis
The epiphysis closest to the body’s center is the PROXIMAL epiphysis.
Diaphysis
the shaft or central part of a long bone. Compare with epiphysis.
Articular Cartilage
(hyaline cartilage, padding)
Periosteum
(hyaline cartilage, padding)
Medullary Cavity
hollow chamber filled with bone marrow
Functions of Red Marrow
Blood
Compact Bone Tissue
(wall of the diaphysis)
Spongy Bone Tissue
(wall of the diaphysis)
Functions of Yellow Marrow
Fat
Long Bones
Long bones are so named because they are longer than they are wide. Long bones include: Femur Tibia Fibula Humerus Radius Ulna Metacarpals and metatarsals Phalanges Clavicles
Short Bones
Long bones are so named because they are longer than they are wide. Long bones include: Femur Tibia Fibula Humerus Radius Ulna Metacarpals and metatarsals Phalanges Clavicles
Flat Bones
Flat bones are thin, flattened and usually somewhat curved.
Flat bones include: Most bones in the skull Ribs Sternum Scapula
Irregular Bones
Irregular bones have various shapes that do not fit into the other categories of bone shapes.
Irregular bones include: Vertebrae Sacrum Coccyx Temporal Sphenoid Ethmoid Zygomatic Maxilla Mandible Hyoid Palatine Iinferior nasal concha
Sesamoid bones
Irregular bones have various shapes that do not fit into the other categories of bone shapes.
Irregular bones include: Vertebrae Sacrum Coccyx Temporal Sphenoid Ethmoid Zygomatic Maxilla Mandible Hyoid Palatine Iinferior nasal concha
