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HS- Skeletal System

Skeletal System Terms

QuestionAnswer
How many adult bones are in the skeletal system? 206
The axial skeleton consists of what? Skull, Spinal column, Ribs, Sternum, and Hyoid Bone
The appendicular skeleton consists of what? Extremities, pelvic and shoulder girdles
How many bones are in the upper extremities? 64
How many bones are in the lower extremities? 62
What are functions of the skeletal system? Framework for muscles, fat, and skinProtect internal structuresProduction of blood cellsStorage of calcium, phosphorous, and fatLevers
What are bones of extremities? Long Bones
What is the long shaft of a bone called? Diaphysis
What are the ends of the bones called? Epiphysis
Where is red marrow found? In proximal ends of humerus and femur
This is iniside the diaphysis and filled with yellow marrow Medullary Canal
This lines the medullary canal, keeps yellow marrow intact, and produces some bone growth. Endosteum
This is found in vertebrae, ribs, proximal ends of humerus and femur and produces RBCs, WBCs, and platelets Red Marrow
This is outside of bone, and it is tough membrane that is necessary for bone growth and repair and nutrition. Periosteum
Cells that form new bone tissue Osteoblasts
Cells that break down bone Osteoclasts
The skull is composed of what type of bones? Cranial and Facial
What are the 8 bones of the cranium Frontal, Temporal, Ethmoid, Parietal, Occipital, and Sphemoid
What are the 14 facial bones? Mandible, Maxilla, Zygomatic, Lacrimal, Nasal and Palatine
What is an area where cranial bones have joined together? Suture
What are airspaces in the skull that act as resonating chambers? Sinuses
What are openining that allow nerves and bld vessels to enter/ leave bones Foramina
What turns into solid bone around 18 months of age? Fontanels
How many bones are in the Spinal Column 26
What are the 2 functions of Vertebrae To protect the spinal cord, and support head and trunk
How many cervical vertebrae are there and where are they located? 7 in the neck
How many thoracic vertebrae are there and where are they located? 12- chest, attach to ribs
How many Lumbar vertebrae are there and where are they located? 5- waist, including the sacrum and coccyx
What are pads of cartilage that separate the vertebrae and absorb shock and permit bending and twisting Intervertebral Disks
How many ribs are there? 12
True ribs are the first __ pairs 7
False ribs are the last __ pairs 5
The sternum includes Manubrium, Gladiolus, and Xiphoid Process
The pectoral girdle, or shoulder is made up of which bones? 2 Clavicles, 2 Scapulas, and Proximal end of humerus
This is the upper arm Humerus
Lower arm on thumb side Radius
Lower arm Ulna
This forms the elbow Olecranon process
How many carpals are there and where are they located 8- in the wrist
How many metacarpals are there and where are they located? 5- palm of the hand
How many phalanges are there and where are they located? 14- Fingers
3 fused sections of the Pelvic Girdle Ilium, Ischium, and pubis
What is the opening for nerves/ bld vessels in the pelvic bone? Obturator foramen
Thigh bone? Femur
Knee cap? Patella
Lower leg (medial aspect) tibia
Lower leg (lateral aspect) Fibula
How many bones are in the tarsals and where are they located? 7- ankle
What is the calcaneus (Heel) Largest tarsal
How many metatarsals are there and where are they located? 5- instep of foot
How many phalanges are in the foot and where are they located? 14- toes
What is a freely moveable joint called? Synovial
What is a slightly moveable joint called? Amphiarthrosis
What is an immovable joint called? Synarthrosis
Inflammation of the Joints Arthritis
Inflammation of the bursae bursitis
Bone forcibly displaced from a joint? Dislocation
Twisting action that tears ligaments at a joint Sprain
Bone inflammation usually caused by a pathogenic organism osteomyleitis
Increased softening of the bones Osteoporosis
When invertebral disk ruptures or protrudes Ruptured Disk
Created by: Harperwhite