Textbook Question
The inferior portion of the sternum is the_____ . The superior portion of the sternum is the_____, and it articulates with the______ and the first rib.
492
views
7. The Skeletal System
The Thoracic Cage
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the primary function of the ribcage in the human body?
A
To protect the heart and lungs
B
To store calcium and phosphorus
C
To support the weight of the body
D
To facilitate the movement of the arms
Verified step by step guidance1
Understand the anatomical structure of the ribcage: The ribcage is composed of ribs, sternum, and thoracic vertebrae, forming a protective enclosure around vital organs.
Identify the organs protected by the ribcage: The ribcage primarily protects the heart and lungs, which are crucial for circulatory and respiratory functions.
Consider the role of the ribcage in protection: The ribcage acts as a shield against physical trauma, safeguarding the heart and lungs from external impacts.
Evaluate other functions of the ribcage: While the ribcage does not store calcium and phosphorus, it provides attachment points for muscles involved in respiration and upper limb movement.
Conclude the primary function: The ribcage's main role is to protect the heart and lungs, ensuring these organs can function without interference from external forces.
Related Videos
Related Practice
The Thoracic Cage practice set
Problem sets built by lead tutorsExpert video explanations