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A&P 1
chap 7
| Question | Answer |
|---|---|
| If the supply of blood cells is deficient, yellow marrow may change into red marrow. | True |
| What is the action of the thyroid hormone thyroxine on the skeletal system? | To stimulate replacement of cartilage with bone in the epiphyseal plate. |
| Which of the following is the most abundant form in which calcium is found in the inorganic matrix of the bone? | Hydroxyapatite |
| What is the name of the depression in the scapula that provides an articulation for the humerus of the shoulder joint? | Glenoid cavity |
| The talus, calcaneus, navicular, cuboid, and lateral, intermediate, and cuneiform bones are all part of the_________. | foot |
| What would happen if the ossification center was removed during the process of intramembranous ossification? | Bone would stop growing. |
| What is the effect of sex hormones on the skeletal system? | They stimulate ossification of the epiphyseal plates. |
| A laminectomy is a procedure used to treat osteoporosis that removes part of the body of a vertebra. | False |
| What are osteoclasts | Bone cells that break down bone matrix |
| What are the secondary curves of the vertebral column? | Cervical and lumbar curvatures |
| What type of tissue comprises articular cartilage | Hyaline cartilage |
| The calcaneus bone of the foot is an example of a(n) __________. | short bone |
| Ribs that join the sternum directly by costal cartilages are called__________ ribs. | True |
| What are the names of the three borders of the scapula? | The superior, lateral, and medial borders |
| The ischium is the anterior part of the hip bone. | False |
| The small intestine requires vitamin D to adequately absorb calcium. | True |
| Loriann has an abnormally narrow pelvic brim. This will most likely be a problem during childbirth. | True |
| Which of the following is not an abnormal curvature of the spine? | Multiple sclerosis |
| What is the function of osteoblasts? | Osteoblasts deposit bone matrix around themselves and become osteocytes when they are isolated in lacunae. |
| Which of the following is not a component of the skeletal system? | Skeletal muscle |
| At what age are nearly all bones completely ossified? | 25 years |
| Pituitary dwarfism results from a decreased secretion of__________ , which in turn decreases the rate of cell division of__________. | growth hormone; cartilage cells in the epiphyseal plate |
| The sternum is composed of three parts: the lower manubrium, the middle body, and the upper xiphoid. | False |
| In the humerus, the deltoid tuberosity is located on the diaphysis; the trochlea, capitulum, and the greater/lesser tubercles are parts of the epiphyses. | True |
| The appendicular skeleton consists of the parts that support and protect the head, neck, and trunk. | False |
| Bones in the human body are nonliving. | False |
| Consider the following situation. During endochondral bone formation, the secondary ossification center never begins to form. What will the developing bone look like? | ... |
| The femur extends from the knee to the foot. | False |
| Consider the classifications of bone, and examples of each. Which classification applies to bones used primarily for movement rather than protection? | Long bones |
| A styloid process is part of the ulna. | True |
| Bone remodeling occurs as osteoblasts resorb bone tissue and osteoclasts replace the bone. | False |
| What are the primary curves of the vertebral column? | Thoracic and sacral curvatures |
| Blood cell formation is called osteogenesis. | False |
| What three bones fuse to form the hip bone? | The ilium, the ischium, and the pubis |
| The zygomatic bone is an example of what shape of bone? | Irregular bone |
| It is possible to determine if a child's long bone is growing by examining a radiograph of the bone and looking for a(n)_________. | epiphyseal plate |
| Which of the following bones is not part of the orbit of the skull? | Vomer |
| Which bone forms by intramembranous ossification? | Zygomatic |
| Where are the capitulum and trochlea located? | At the distal end of the humerus |
| Kyphosis is an excess curvature in the thoracic part of the vertebral column. | True |
| Which of the following is not a function of bones? | Contraction |
| Height begins to decrease on average after age_________. | 30 |
| Lordosis is an excess curvature of the thoracic part of the vertebral column. | False |
| Which of the following describes a female's pelvis compared to a male's pelvis? | A cavity that is wider in all dimensions, with lighter bones. |
| Having extra digits is termed__________. | polydactyly |
| Osteoclasts are bone-resorbing cells, whereas osteoblasts are bone-forming cells. | True |
| If the atlas and axis were replaced with typical cervical vertebrae, what would be affected? | The ability to pivot the head from side to side |
| Which of the following is/are not a component(s) of the pelvic girdle? | Femurs |
| Men and women begin to lose bone at the same rate by about age 70. | True |
| If the trochlea was fractured, what joint would be affected? | The elbow joint |
| Intervertebral discs are composed of skeletal muscle. | False |
| Which of the following is not a component of the skeletal system? | Skeletal muscle |
| Where are the capitulum and trochlea located? | At the distal end of the humerus |
| Bacteria infecting the mucous membranes in the air cells of the mastoid process most likely spread from the__________. | middle ear |
| What disorder is characterized by the secretion of excess growth hormone in an adult? | Acromegaly |
| As a person ages, osteoblasts out number osteoclasts. | False |
| What three bones fuse to form the hip bone? | The ilium, the ischium, and the pubis |
| What is the process by which a bone grows in length? | Increased activity within the epiphyseal plate |
| Kyphosis is an excess curvature in the thoracic part of the vertebral column. | True |
Created by:
Bbuck1
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