The hip and shoulder joints are examples of ____.
Correct answer B. ball-and-socket joints
Topic / 45 questions
Support and Movement MCQs
Page 2 of Support and Movement multiple-choice questions with answers. Tap an option to check yourself.
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The joint between the carpal and first metacarpal at the base of the thumb is a ____.
Correct answer C. saddle joint
The joint between the two pubic bones of the pelvis (pubic symphysis) is classified as a ____.
Correct answer D. cartilaginous joint
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The dark A band of a sarcomere corresponds to ____.
Correct answer B. the full length of the thick myosin filaments
What is the role of the transverse (T) tubules in a skeletal muscle fibre?
Correct answer D. They carry action potentials from the sarcolemma deep into the fibre
The cell membrane of a skeletal muscle fibre is called the ____.
Correct answer C. sarcolemma
Skeletal muscle fibres are multinucleate because ____.
Correct answer B. each fibre forms by fusion of many embryonic myoblasts
Smooth muscle fibres are best described as ____.
Correct answer C. spindle-shaped, uninucleate and non-striated
Which of the following is part of the appendicular skeleton?
Correct answer A. Clavicle
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How many bones make up the axial skeleton of an adult human?
Correct answer B. 80
How many pairs of ribs are present in a normal human?
Correct answer B. 12
Which type of cartilage forms the C-shaped rings of the trachea and covers the articulating ends of bones?
Correct answer A. Hyaline cartilage
The external ear (pinna) and the epiglottis are supported by ____.
Correct answer B. elastic cartilage
Which type of cartilage forms the intervertebral discs and the pubic symphysis?
Correct answer B. Fibrocartilage
Cartilage heals slowly after injury mainly because it ____.
Correct answer A. lacks blood vessels
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Mature cartilage cells that lie in small spaces called lacunae within the matrix are ____.
Correct answer B. chondrocytes
Which bone cells break down bone matrix and release calcium into the blood?
Correct answer D. Osteoclasts
Which cells secrete new bone matrix (osteoid) during bone formation?
Correct answer A. Osteoblasts
The structural unit of compact bone, made of concentric lamellae around a central canal, is called ____.
Correct answer C. the Haversian system (osteon)
Channels that run at right angles to Haversian canals and connect them with each other and with the bone surface are ____.
Correct answer A. Volkmann's canals