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7 The Skeleton
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How many bones comprise the skull?
1 22 200 220 Answer: b. 22
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The ______ is not an integral bone of the skull and is not attached by sutures to the remainder of the skull bones. sphenoid ethmoid maxilla mandible Answer: d. mandible
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This skull bone is connected to the rest of the cranium posteriorly via the coronal suture. It is the _______ bone. parietal frontal occipital sphenoid Answer: b. frontal
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This skull bone provides the major passageway for the brain to communicate with the rest of the body. It is the _________ bone. occipital parietal frontal ethmoid Answer: a. occipital
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This bone contains four major areas: squamous, tympanic, mastoid, and petrous. It is the _______ bone. mandible occipital temporal frontal Answer: c. temporal
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Which of the following foramina visible in preserved skulls is almost completely enclosed by cartilage in a living person? Foramen lacerum Foramen magnum Foramen rotundum Jugular foramen Answer: a. Foramen lacerum
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Greater wings of the sphenoid bone Lesser wings of the sphenoid bone
Which of the following structures serves as a “seat” of the endocrine system by supporting the pituitary gland? Pterygoid process Greater wings of the sphenoid bone Lesser wings of the sphenoid bone Sella turcica Answer: d. Sella turcica
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The holes in the cribriform plate primarily serve as _______.
a way to lighten the weight of the skull passageways for olfactory nerves sensory organs entry points for light Answer: b. passageways for olfactory nerves
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The _________ is an important muscle attachment site used for chewing.
mandibular condyle mandibular ramus coronoid process of the mandible mandibular body Answer: c. coronoid process of the mandible
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The scientific name for the cheekbone is the _______.
zygomatic bone maxilla nasal bone palatine bone Answer: a. zygomatic bone
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If you have a broken nose, most likely you have broken your __________.
zygomatic bone maxilla nasal bone palatine bone Answer: c. nasal bone
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Which of the following bones does not articulate directly with any other bone in the skeleton?
Mandible Clavicle Scapula Hyoid Answer: d. Hyoid
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There are ______ bones that form the adult vertebral column.
2 26 206 62 Answer: b. 26
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The primary functions of the vertebral column include ___________
conducting nervous impulses from the brain. protection of the spinal cord. transmission of weight from the trunk to the lower limbs. both b and c. Answer: d. both b and c.
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What is the primary function of the intervertebral foramina?
To allow passage of the spinal cord Attachment of ligaments For exit of spinal nerves from the spinal cord To anchor the intervertebral discs Answer: c. For exit of spinal nerves from the spinal cord
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Cervical vertebrae can be uniquely identified by the presence of ________.
transverse foramina transverse processes spinous processes vertebral foramina Answer: a. transverse foramina
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occipital condyles; odontoid process
The ______ is (are) responsible for nodding “yes,” while the ______ is responsible for shaking your head “no.” axis; atlas atlas; axis occipital condyles; odontoid process odontoid process; occipital condyles Answer: c. occipital condyles; odontoid process
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This group of vertebrae is the only group that articulates with the ribs.
Cervical Thoracic Lumbar Sacral Answer: b. Thoracic
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The major function(s) of the thoracic cage is (are) _______.
to protect the lungs to help expand the thoracic cavity during breathing to aid in digestion both a and b Answer: d. both a and b
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Which of the following organs lies directly posterior to the sternum?
Heart Brain Spinal cord Liver Answer: a. heart
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Which of the following bones is not part of the appendicular skeleton?
Clavicle Scapula Sternum Tibia Answer: c. Sternum
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flexibility; stability stability; flexibility flexibility; endurance
The arrangement of bones and muscles of the pectoral girdle is such that there is a high degree of ________ but a low level of ______. strength; length flexibility; stability stability; flexibility flexibility; endurance Answer: b. flexibility; stability
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The ________ is the most frequently fractured portion of the humerus.
anatomical neck surgical neck radial groove trochlea Answer: b. surgical neck
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The “funny bone” of the elbow is actually this portion of the humerus:
Trochlea Capitulum Lateral epicondyle Medial epicondyle Answer: d. Medial epicondyle
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The _______ rotates about the ______ when you pronate your forearm (the palm faces posteriorly).
ulna; radius ulna; humerus radius; humerus radius; ulna Answer: d. radius; ulna
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Which two carpals articulate with the radius to form the wrist joint?
Triquetal and lunate Scaphoid and pisiform Scaphoid and lunate Trapezoid and hamate Answer: c. Scaphoid and lunate
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Which of these bones would bear a ring?
Phalanx Metacarpal Carpal Tarsal Answer: a. Phalanx
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Each of the hip bones is comprised of _____ separate bone(s).
1 2 3 4 Answer: c. 3
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Which of the following bones is capable of bearing the greatest physical stress?
Femur Ischium Fibula Patella Answer: a. Femur
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This bone of the leg bears no weight.
Femur Tibia Fibula Talus Answer: c. Fibula
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