The Skeletal System Flashcards
How many bones and teeth are in the human skeleton?
206 bones and 32 teeth
What are the bands of dense and fibrous connective tissue that are key to the function of joints?
Ligaments
What is more flexible than bone but stiffer than muscle.
Cartilage
What group of skeleton facilitates movements?
Appendicular Skeleton
What are the five classifications of bones?
Long Bones, Flat Bones, Sesamoid Bones, Short Bones, and Irregular Shaped Bones.
What class of bone is the femur?
Long Bone
What class of bone is the frontal bone?
Flat Bone
What class of bone is the kneecap?
Sesamoid Bone
What class of bone are the carpals and tarsals?
Short Bones
What class of bone is the vertebrae?
Irregular Shaped Bones
What are the two divisions of the skull?
Cranial Bones and Facial Skeleton
What are the eight cranial bones?
Occipital Bone, Left and Right Parietal Bone, Left and Right Temporal Bone, Frontal Bone, and Ethmoid.
What are the large regions of fibrous membranes in fetuses and newborn infants?
Fontanelles
What develops as fontanelles close?
Cranial Sutures
What kind of suture is located between the occipital and parietal bones?
Lambdoid Suture
What kind of suture is located between the frontal and parietal bones?
Coronal Suture
What kind of suture is located between the two parietal bones?
Sagittal Suture
What kind of suture is located between the temporal and parietal bones?
Squamous Suture
What are the five regions of the vertebral column?
Cervical, Thoracic, Lumbar, Sacral, and Coccygeal
What are the three divisions of the sternum?
Manubrium, Body of the Sternum, and Xiphoid Process
How many pair of ribs are true ribs?
Seven
How many pair of ribs are false ribs?
Five
What holds the skeleton together and support its movement?
Joints
What joints have thick connective tissue between them?
Fibrous Joints
What joints unite bones with cartilage?
Cartilaginous Joints
What joints are characterized by the presence of a capsule between the two joined bones?
Synovial Joints
What consists the shoulder girdle?
Scapulae and Clavicles
What is the arm bone called?
Humerus
What are the two forearm bones?
Radius and Ulna
What is the wrist bone called?
Carpal
What are the two hand bones?
Metacarpals and Phalanges
What is the ring of bones attached to the vertebral column that connects the bones of the lower limbs to the axial skeleton?
Pelvic Girdle
What is the large, flattened, and irregularly shaped fusion of three bones?
Hip Bone
What are the three divisions of the hip bone?
Ilium, Ischium, and Pubis
What is the thigh bone called?
Femur
What are the two leg bones?
Tibia and Fibula
What are the three foot bones?
Tarsus, Metatarsals, and Phalanges
