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Exam (elaborations)

CSCC BIO 2300 UNIT 4 QUESTIONS AND ANSWERS 2025

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CSCC BIO 2300 UNIT 4 QUESTIONS AND ANSWERS 2025

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CSCC BIO 2300 UNIT 4 2025
ANSWER ALL QUESTIONS IN THIS SECTION



QUESTION 1



Manubrium of sternum - ANSWERS-Articulates with ribs 1, 2, & clavicles.
Sternocleidomastoid muscles also attach here.



QUESTION 2



Jugular Notch - ANSWERS-central indentation in superior border of manubrium



QUESTION 3



Sternal Angle - ANSWERS-Ridge between manubrium and body at second rib



QUESTION 4



Body of Sternum - ANSWERS-the bony structure that forms the middle portion of
the sternum




QUESTION 5

END OF
PAGE 1

, CSCC BIO 2300 UNIT 4 2025

Xiphoid process of sternum - ANSWERS-bottom of sternum



QUESTION 6



Costal Margin - ANSWERS-lower border of rib margin formed by the medial
edges of the 8th, 9th, and 10th ribs



QUESTION 7



True Rib - ANSWERS-a rib that is attached directly to the breastbone (1-7)



QUESTION 8



False Rib - ANSWERS-8-12, This rib attaches to the vertebrae in the back and
indirectly to the sternum through cartilage (two words singular)



QUESTION 9



1st Rib - ANSWERS-origin of subclavius

QUESTION 10



END OF
PAGE 2

, CSCC BIO 2300 UNIT 4 2025
7th Rib - ANSWERS-longest rib



QUESTION 11



12th Rib - ANSWERS-Inferior extent of pleura posteriorly



QUESTION 12



Costal Cartilage - ANSWERS-connects ribs to sternum; hyaline cartilage



QUESTION 13



Head of Rib - ANSWERS-Articulates with the costal facet of a thoracic vertebral
body.



QUESTION 14



Neck of Rib - ANSWERS-narrowed region of a rib, next to the rib head



QUESTION 15



Body of Rib - ANSWERS-main part of the rib distal to the neck
END OF
PAGE 3

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