Skeletal System Flashcards
number of bones in the human body
206
the two types of skeleton
axial and appendicular
number of bones in the axial skeleton
74
number of bones in the appendicular system
126
bones that make up the axial skeleton
Mnemonic: SVSR - Sexy Vampire Saves Racoon
skull, vertebral column, sternum, ribs
bones that make up the appendicular skeleton
Mnemonic: LUPS - Lazy Unicorn Poops Sherbet
lower extremity, upper extremity, pelvic girdle, shoulder girdle
important functions of the axial skeleton
1) provide main axial support for the body
2) protect the CNS
3) protect the organs of the thorax (lungs, air passages, heart, and largest blood vessels - thoracic cavity)
number of vertebrae in the vertebral column
33 (26 bones due to fused vertebrae of sacrum and coccyx)
regions of the vertebral column
cervical curve, thoracic curve, lumbar curve, sacrum, coccyx
number of vertebrae in the cervical curve
7
number of vertebrae in the thoracic curve
12
number of vertebrae in the lumbar curve
5
number of vertebrae in the sacrum
5 fused vertebrae
number of vertebrae in the coccyx
4 fused vertebrae
the largest and heaviest vertebrae
lumbar curve
bones of the lower extremity
Mnemonic: PMTPTFF - Pink Monkey Throws a Party for Trans Female Fox
phalanges, metatarsals, tarsals, patella, tibia, fibula, femur
bones of the pelvic girdle
hip or pelvis (os coxae = ilium, ischium, pubis)
bones of the shoulder girdle
clavicle, scapula
bones of the upper extremity
Mnemonic: PMCRUH - Purple Mouse Cooks Rice Under House
phalanges, metacarpals, carpals, radius, ulna, humerus
joints; where two bones meet
articulations
3 main types of joints/articulations
1) fibrous
2) cartilaginous
3) synovial
these types of joints allow little to no movement
fibrous and cartilaginous
most common type of joint
synovial
4 characteristic traits of synovial joints
1) articular cartilage
2) articular capsule
3) synovial membrane
4) synovial fluid
