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When considering the axial skeleton, which bone is included?

A.

Clavicle

B.

Sternum

C.

Femur

D.

Scapula

Answer and Explanation

The Correct Answer is B

A. Clavicle: The clavicle is part of the pectoral (shoulder) girdle and belongs to the appendicular skeleton, not the axial skeleton.
B. Sternum: The sternum is a central bone of the thoracic cage (breastbone) and is part of the axial skeleton.
C. Femur: The femur is the thigh bone of the lower limb and is part of the appendicular skeleton.
D. Scapula: The scapula (shoulder blade) is part of the pectoral girdle and belongs to the appendicular skeleton.


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Related Questions

Correct Answer is D

Explanation

A. Bone formation:Bone formation is carried out by osteoblasts rather than osteoclasts.
B. Calcium deposition:Deposition of calcium into new bone matrix is associated with osteoblast activity.
C. Collagen production:Collagen synthesis for the organic bone matrix is predominantly performed by osteoblasts.
D. Bone resorption:Osteoclasts resorb (break down) mineralized bone matrix, releasing calcium and phosphate into the bloodstream.

Correct Answer is C

Explanation

A. Epidermis: The epidermis is the outer avascular layer composed mainly of keratinocytes and does not contain blood vessels or most glands.
B. Hypodermis: The hypodermis (subcutaneous layer) contains adipose tissue and larger blood vessels and nerves but fewer sensory receptors and not the primary location of most dermal glands.
C. Dermis: The dermis houses blood vessels, a variety of sensory receptors, hair follicles, sebaceous glands, and sweat glands, and provides structural support to the skin.
D. Stratum corneum: The stratum corneum is the outermost sublayer of the epidermis composed of dead keratinized cells and lacks blood vessels, receptors, and glands.

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