Question

when a bone breaks, a ______ forms until later being replaced with bone.
growth plate
pore
topic: sec. 5.4
skill: understanding
callus
hematoma
cyst
question 15
1 pts
the rib cage is directly involved in the functioning of which organ system?
circulatory
respiratory
digestive
endocrine

Explanation:

First Question (Bone Break Question)

To solve this, we analyze each option:

• Growth plate: Involved in bone growth, not repair.
• Pore: Small opening, not related to bone repair.
• Callus: Forms after a bone break, a temporary structure replaced by bone.
• Hematoma: Blood clot, initial step, not the structure replaced by bone.
• Cyst: Abnormal sac, not related to bone repair.

Analyze each system:

• Circulatory: Transports blood, rib cage not direct here.
• Respiratory: Rib cage (with diaphragm) helps in breathing (expansion/contraction of chest cavity for lung ventilation).
• Digestive: Processes food, rib cage not direct.
• Endocrine: Secretes hormones, rib cage not direct.

Answer:

callus

Question 15 (Rib Cage and Organ System)