Human Anatomy and Physiology : Identifying Bones of the Trunk and Core

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

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Example Questions

Example Question #31 : Identifying Bones Of The Trunk And Core

What is the most superior portion of the sternum?

Possible Answers:

Xiphoid process

Humerus

Clavicle

Body of the sternum

Manubrium

Correct answer:

Manubrium

Explanation:

The most superior portion of the sternum is the manubrium. The body of the sternum is just inferior to the manubrium. The xiphoid process is the most inferior portion of the sternum. The clavicle and the humerus are not part of the sternum.

Example Question #31 : Identifying Bones Of The Trunk And Core

What is the structure of the xiphoid process of a child?

Possible Answers:

Smooth muscle

Striated muscle

Cartilage

Cardiac muscle

Bone

Correct answer:

Cartilage

Explanation:

The xiphoid is composed of cartilage in children. By adulthood, this cartilage has undergone ossification and is replaced by bone.

Example Question #32 : Identifying Bones Of The Trunk And Core

On which portion of the sternum do the clavicles insert?

Possible Answers:

Humerus

Xiphoid process

Supraspinatus muscle

Body of the sternum

Manubrium

Correct answer:

Manubrium

Explanation:

The clavicles insert in the most superior portion of the sternum known as the manubrium. The clavicles do not insert into the body of the sternum, the xiphoid process, the humerus, or the supraspinatus muscle.

Example Question #31 : Identifying Bones Of The Trunk And Core

What does the sternal angle separate?

Possible Answers:

The manubrium and the second rib

The manubrium and the first rib

Body of the sternum and the xiphoid process

Manubrium and the body of the sternum

Manubrium and the xiphoid process

Correct answer:

Manubrium and the body of the sternum

Explanation:

The sternal angle separates the manubrium and the body of the sternum.

Example Question #31 : Identifying Bones Of The Trunk And Core

On which portion of the sternum does the first rib insert?

Possible Answers:

Xiphoid process

Clavicle

Manubrium

Body of the sternum

Humerus

Correct answer:

Manubrium

Explanation:

The first rib inserts on the manubrium of the sternum.

Example Question #31 : Identifying Bones Of The Trunk And Core

Which rib inserts at the sternal angle?

Possible Answers:

First rib

Fourth rib

Third rib

Second rib

Fifth rib

Correct answer:

Second rib

Explanation:

The second rib inserts at the sternal angle. The first rib inserts on the manubrium and the third through six ribs insert on the body of the sternum.

Example Question #32 : Bones

On which portion of the sternum do the third through sixth ribs insert?

Possible Answers:

Body of the sternum

Xiphoid process

Humerus

Manubrium

Clavicle

Correct answer:

Body of the sternum

Explanation:

The third through sixth ribs insert at the body of the sternum. They do not insert at the manubrium, xiphoid process, clavicle, or the humerus.

Example Question #33 : Bones

Where is the jugular notch located in the sternum?

Possible Answers:

Manubrium

Xiphoid process

Body of the sternum

Clavicle

Humerus

Correct answer:

Manubrium

Explanation:

The jugular notch, also known as the suprasternal notch is located at the superior portion of the manubrium. It is not located on the body of the sternum, the xiphoid process, the clavicle or the humerus.

Example Question #33 : Identifying Bones Of The Trunk And Core

What joint separates the body of the sternum and the xiphoid process?

Possible Answers:

Coracoclavicular joint

Xiphisternal joint

Sternal angle

Costoclavicular joint

Acromioclavicular joint

Correct answer:

Xiphisternal joint

Explanation:

The xiphisternal joint separates the body of the sternum and the xiphoid process. The sternal angle separates the manubrium and the body of the sternum.

Example Question #33 : Identifying Bones Of The Trunk And Core

The pelvic outlet is bounded by which of the following structures?

Possible Answers:

Inferior margin of the pubic symphysis and the tip of coccyx

Inferior margin of the pubic symphysis and the sacral promontory

Public tubercle and the ischial tuberosity

Superior margin of the pubic symphysis and the tip of coccyx

Correct answer:

Inferior margin of the pubic symphysis and the tip of coccyx

Explanation:

The pelvic outlet is the lower circumference of the lesser pelvis. The pelvic outlet is bounded anterior-posteriorly by the pelvic arch (specifically the inferior margin of the pubic symphysis) and the tip of the coccyx. Laterally it is bound by the ischial tuberosities.

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