Human Anatomy and Physiology : Identifying Bones of the Upper Extremities

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

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Example Question #41 : Identifying Bones Of The Upper Extremities

A patient has AB positive blood. Which of the following blood types, if transfused, would cause agglutination?

Possible Answers:

A positive

None of these

AB negative

B negative

O negative

Correct answer:

None of these

Explanation:

An AB positive patient is known as a universal recipient because they can receive blood from any blood type. The recipient's antibodies are what will attack foreign antigens. Type AB positive patients produce no antibodies, because any antibody produced would attack their own antigens, causing agglutination. Because type AB patients patients do not produce antibodies, they cannot attack any antigens and they can receive any blood type.

Example Question #42 : Identifying Bones Of The Upper Extremities

Which is the largest, longest bone of the upper limb?

Possible Answers:

femur

radius

humerus

ulna

Correct answer:

humerus

Explanation:

The humerus is the largest, longest bone of the upper limb. The radius and ulna — neither as large as the humerus — make up the forearm, while the femur is analogous to the humerus in the lower limb.

Example Question #43 : Identifying Bones Of The Upper Extremities

Which are the most distal bones of the upper limb?

Possible Answers:

ulna

phalanges

humerus

radius

Correct answer:

phalanges

Explanation:

Phalanges, the digits of the hand, are the most distal bones of the upper limb.

The humerus is the bone of the upper arm. The ulna is the bone of the medial side of the forearm. The radius is the bone of the lateral side of the forearm. These bones are all proximal to the phalanges.

Example Question #42 : Identifying Bones Of The Upper Extremities

Arrange the following bones in order from most proximal to most distal: humerus, phalanges, radius, and ulna.

Possible Answers:

phalanges, humerus, radius, ulna

phalanges, ulna, radius, humerus

humerus, ulna, radius, phalanges

ulna, humerus, radius, phalanges

Correct answer:

humerus, ulna, radius, phalanges

Explanation:

The humerus is the bone of the upper arm and is most proximal of these four bones; it articulates proximally with the scapula and distally with the radius and ulna. The ulna is the bone of the medial side of the forearm; it articulates proximally with the humerus and radius and distally with the radius. The radius is the bone of the lateral side of the forearm and crosses the ulna during pronation. Phalanges, the digits of the hand, are the most distal bones of the upper limb.

Example Question #43 : Identifying Bones Of The Upper Extremities

Which of the following articulates proximally with the scapula and distally with the radius and ulna?

Possible Answers:

clavicle

tibia

humerus

phalanges

Correct answer:

humerus

Explanation:

The humerus is the bone of the upper arm; it articulates proximally with the scapula and distally with the radius and ulna. The ulna is the bone of the medial side of the forearm; it articulates proximally with the humerus and radius and distally with the radius. The radius is the bone of the lateral side of the forearm and crosses the ulna during pronation.

Phalanges, the digits of the hand, are the most distal bones of the upper limb. The clavicle is an S-shaped bone located between the sternum and the scapula.

The tibia is located in the lower limb.

Example Question #44 : Identifying Bones Of The Upper Extremities

Arrange the following bones in order from most distal to most proximal: carpals, humerus, metacarpals, phalanges, and radius (they appear here in alphabetical order).

Possible Answers:

phalanges, humerus, metacarpals, radius, carpals

phalanges, carpals, metacarpals, radius, humerus

phalanges, metacarpals, carpals, radius, humerus

carpals, metacarpals, humerus, radius, phalanges

Correct answer:

phalanges, metacarpals, carpals, radius, humerus

Explanation:

Phalanges, the digits of the hand, are the most distal bones of the upper limb. They articulate with the metacarpals, the bones of the hand, which in turn articulate with one of two rows of carpals, the bones of the wrist. Next is the radius, the bone of the lateral side of the forearm, which articulates with the humerus, the bone of the upper arm, which articulates proximally with the scapula and distally with the radius and ulna.

Example Question #45 : Identifying Bones Of The Upper Extremities

The head of the humerus articulates proximally with which of the following?

Possible Answers:

scapula

radius

carpals

ulna

Correct answer:

scapula

Explanation:

The head of the humerus articulates proximally with the scapula at the glenoid fossa. It articulates distally with the radius and ulna. The carpals are the bones of the wrist; they do not articulate with the humerus.

Example Question #45 : Identifying Bones Of The Upper Extremities

Which bones make up the wrist?

Possible Answers:

carpals

metacarpals

tarsals

metatarsals

Correct answer:

carpals

Explanation:

The carpals make up the wrist. The metacarpals make up the body of the hand. The tarsals and metatarsals make up the ankle and the body of the foot, respectively. 

Example Question #45 : Identifying Bones Of The Upper Extremities

Which bones make up the hand?

Possible Answers:

tarsals

metacarpals

carpals

metatarsals

Correct answer:

metacarpals

Explanation:

The metacarpals make up the body of the hand. The carpals make up the wrist. The tarsals and metatarsals make up the ankle and the body of the foot, respectively. 

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