Podcast
Questions and Answers
Which of the following is NOT a function of the thorax?
Which of the following is NOT a function of the thorax?
What structure is NOT part of the thoracic cage?
What structure is NOT part of the thoracic cage?
Which section of the mediastinum contains the heart?
Which section of the mediastinum contains the heart?
Which of the following is an example of an articulation between the ribs and the sternum?
Which of the following is an example of an articulation between the ribs and the sternum?
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Where are the intercostal neurovascular bundles located?
Where are the intercostal neurovascular bundles located?
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What is the origin of the intercostal nerves?
What is the origin of the intercostal nerves?
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Which of the following muscles is NOT part of the anterior thoracic wall?
Which of the following muscles is NOT part of the anterior thoracic wall?
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What is the main function of the costal cartilages?
What is the main function of the costal cartilages?
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Study Notes
Course Information
- Course title: Advanced Human Anatomy
- Course code: Bio 2032
- Instructor: Cristina V. Dieni, PhD
- Contact information: Phone: 942-421, ext 2248; Email: [email protected]
- Academic term: Fall 2024-2025
Learning Outcomes
- Describe the surface of the thorax.
- List the organs in the thoracic cavity.
- Describe the blood supply of the thorax.
- List the muscles of the thorax.
- List the nerves that innervate the thorax.
- Describe some clinical cases related to the listed topics.
Thorax
- Located between the neck and abdomen.
- Houses major vessels, heart, and lungs.
- Functions as a conduit for structures from head, neck to abdomen, pelvis, and lower extremities.
- Specific functions include: protection, support, conduit, segmentation, breathing, and pumping blood.
Subdivision of Mediastinum
- Superior mediastinum: extends from the thoracic inlet to the transverse plane (T4).
- Posterior mediastinum: located behind the heart, below the transverse plane.
- Anterior mediastinum: anterior to the heart, below the transverse plane.
- Middle mediastinum: contains the pericardium, heart, and main bronchi.
Thoracic Cage
- Part of the axial skeleton.
- Includes thoracic vertebrae, 12 pairs of ribs, the midline sternum, and the costal cartilages.
Joints of Thoracic Cage
- Articulations between the ribs and thoracic vertebrae.
- Articulations between the ribs and the sternum.
- Articulation between the clavicle and the manubrium of the sternum, and the first rib
Muscles of Anterior Thoracic Wall
- Pectoralis major
- Pectoralis minor
- Serratus anterior
Intercostal Neurovascular Bundles
- Veins and arteries lie inferior to each rib, within the costal groove.
- They are deep to the internal intercostal muscles.
- Includes arteries and veins of the internal thoracic wall, perforating branches, and nerves.
Intercostal Nerves
- Anterior rami of the first 11 thoracic spinal nerves.
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Description
This quiz covers the key aspects of the thorax, including its surface anatomy, organs within the thoracic cavity, and the muscles and nerves associated with it. You will explore both the structure and function of the thorax, as well as clinical cases related to these topics. Prepare to deepen your understanding of this critical area of human anatomy.
