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Skeletal System Ch

Chapter 7 Q &A

QuestionAnswer
What is the difference between the axial and appendicular skeletons? The axial skeleton relates to the body's axis. The appendicular skeleton relates to the appendages of the body
How many bones comprise the skull? 22. 8 cranial bones and 14 facial bones
What is the function of the paranasal sinuses? Filled with air, they lighten the skull and act as resonators for sound production
What are the names of the 5 sections of the vertebral column? Cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacrum, and coccyx
What is the structure of the vertebral column? Flexible, consisting of 33 vertebrae.
What is the function of the vertebral column? It holds the head and torso upright, serves as an attachment point for the legs, and encases the spinal cord. Allows the body to bend forward, backward, and sideways
What is the atlas? The first ceervical vertebra. It supports the skull. It has no body, just a delicate ring and a large vertebral foramen
What is the axis? The second cervical vertebra. Has a projection called the dens, which projects into the atlas and allows the head to swivel from side to side
Name 3 abnormal spinal curves Scoliosis, kyphosis, and lordosis
What is the structure of the thoracic cage? The thoracic cage consists of the thoracic vertebrae, the sternum, and the ribs. These bones form a cone-shaped cage that surrounds and protects the heart and lungs
Name the regions of the sternum Manubrium (the broadest portion), the body (the longest portion), and the xiphoid process (an important landmark for CPR)
What bones make up the upper limb? Humerus, radius, ulna, and the carpals
Name the bones of the hand 14 Phalanges, 5 metacarpals, and 8 carpals
What are the 8 carpal bones? Distally from thumb to pinky - trapezium, trapezoid, capitate, and hamate. Proximally from thumb to pinky - scaphoid, lunate, triquetrum, pisiform
What are the bones in the pelvic girdle? The 2 large bones of the hip called the os coxae. Each os coxae is comprised of the ilium, ischium, and pubis fused together
What are the differences between the male and female pelvis? The true pelvis is wide and shallow in females and narrow and deep in males. Also, females have a larger pelvic outlet and wider pubic arch than males.
What bones comprise the lower limb? Femur, patella, tibia, fibula, and foot
Name the bones of the foot and ankle Phalanges, metatarsals, tarsals, cuneiforms, talus, navicular, and calcaneous.
How many bones are in the adult skelton? 206. 80 for the axial skeleton and 126 for the appendicular skeleton
Created by: cbooher16