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Physiology - Week 5

Quiz Questions - Assignment 1

QuestionAnswer
Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal? 1. Trabeculae 2. Fontanels 3. Sinuses 4. Sutures Fontanels
In the epiphyseal plate, the zone of hypertrophy is in the _____ layer. Third
The primary ossification center of a long bone is located: 1. In the diaphysis. 2. In the epiphysis. 3. In the medullary cavity. 4. At the epiphyseal cartilage. In the diaphysis
Because of how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. True or false True
In bone formation, the cells that produce the organic matrix are the: 1. Osteoblasts. 2. Osteocytes. 3. Osteoclasts. 4. Chondrocytes. Osteoblasts
One similarity between the structures of the foot and hand is the equivalent degrees of movement of both the thumb and the big toe. True or false False
Normally, bone loss will begin to exceed bone gain between the ages of _____ years. 1. 20 and 25 2. 25 and 30 3. 30 and 35 4. 35 and 40 35 and 40
Calcification of the organic bone matrix occurs when: 1. Complex calcium salts are deposited in the matrix. 2. Complex calcium salts are removed. 3. Calcium is replaced by phosphorus. 4. Calcium is replaced by myeloid tissue. Complex calcium salts are deposited in the matrix.
Before childbirth, the symphysis pubis softens. True or false True
During childbirth, a baby passes through an imaginary plane called the: 1. Pelvic outlet. 2. Symphysis pubis. 3. Pelvic brim. 4. Ilium. Pelvic outlet
The human hand has greater dexterity than the forepaw of any animal because of the freely movable joint of the: 1. Elbow 2. Shoulder 3. Wrist 4. Thumb Thumb
The humerus articulates proximally with the clavicle. True or false False
As the activity of osteoblasts increases, the: 1. Level of calcium in the blood increases. 2. Amount of calcium in bone increases. 3. Level of calcium in the blood decreases. 4. Both B and C occur. Both B and C
An open fracture is also known as a compound fracture. True or False True
The ulna articulates proximally with the: 1. Carpal bones. 2. Humerus. 3. Scapula. 4. None of the above is correct. Humerus
In bone growth, the medullary cavity is enlarged because of the activity of: 1. Osteoclasts. 2. Osteocytes. 3. Osteoblasts. 4. Chondrocytes. Osteoclasts
A condition that is caused by an abnormally increased roundness in the thoracic curvature is: 1. Kyphosis. 2. Scoliosis. 3. Scheuermann disease. 4. lordosis. Kyphosis
Bones grow in diameter by the combined action of which two of the three bone cell types? 1. Osteoblasts and osteocytes 2. Osteoblasts and osteoclasts 3. Osteoclasts and osteocytes 4. Osteocytes and osteons Osteoblasts and osteoclasts
Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. True or False False
The following are functions of bone except for: 1. Support. 2. Protection. 3. Mineral storage. 4. Hematopoiesis. 5. All of the above are functions of the bone All of the above are functions of the bone
Appositional growth of cartilage occurs when chondrocytes begin to divide and secrete: 1. Additional calcium. 2. Additional matrix. 3. Less calcium. 4. Less matrix. Additional matrix
Which of the following is not one of the primary functions performed by bones? 1. Mineral storage 2. Protection 3. Hormonal production 4. Hematopoiesis Hormonal production
Which of the following is not a characteristic of the epiphyses? 1. Made of spongy bone 2. Cylindrical in shape 3. Contain red bone marrow 4. All of the above are characteristics of the epiphyses. Cylindrical in shape
If the cribriform plate is damaged, there is a chance of: 1. Infectious materials passing from ear to brain. 2. Food passing from the mouth into the nose. 3. Difficulty chewing. 4. Infectious materials passing from the nose to the brain. Infectious materials passing from the nose to the brain.
Blood calcium levels involve secretion of which two hormones? 1. Parathyroid and adrenaline 2. Parathyroid and calcitonin 3. Calcitonin and adrenaline 4. Calcitonin and aldosterone Parathyroid and calcitonin
The humerus articulates proximally with the 1. Radius. 2. Ulna. 3. Scapula. 4. Clavicle. Scapula
Which of the following is not dependent on the proper amount of calcium ions in the blood? 1. Blood clotting 2. Transmission of nerve impulses 3. Contraction of cardiac muscle 4. All of the above are dependent All of the above are dependent
Which of the following may cause skeletal variations? 1. Inadequate supply of calcium and vitamin D 2. Mechanical stress 3. Age 4. All of the above may cause skeletal variations All of the above may cause skeletal variations
After the age of 50, the density of bone: 1. Levels off and maintains its composition, 2. Decreases because of a shift in the remodeling activity. 3. Increases because of a shift in the remodeling activity. 4. Decreases - changes in diet. Decreases slowly because of a shift in the remodeling activity.
An age-related skeletal disease that is characterized by loss of bone mineral density and increased bone fragility is 1. Neoplasms. 2. Paget’s disease. 3. Osteoporosis. 4. Osteomalacia. Osteoporosis.
Created by: melaniegranato
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