Term
Medially: the manubrium of the sternum;
Laterally: the acromion process of the scapula |
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Definition
| What two bones articulate with the clavicle and where does they articulate? |
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Term
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Definition
| Is the clavicle convex or concave medially? |
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Term
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Definition
| Is the clavicle convex or concave laterally? |
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Term
The manubrium
The sternal angle
The Xiphosternal junction |
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Definition
| What are the three main parts of the sternum? |
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Term
The clavicle
The first two ribs
The body of the sternum |
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Definition
| Where does the manubrium of the sternum articulate? |
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Term
| It is the junction of the manubrium and the body of the sternum |
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Definition
| The sternal angle is the junction of what two parts of the sternum? |
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Term
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Definition
| What is the only other part of the body with which the xiphosternal junction articulates? |
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Term
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Definition
| What is the name of the superior aspect of the manubrium at the level of the intervertebral disk between T2 and T3? |
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Term
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Definition
| How many pairs of ribs are in a normal human skeleton? |
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Term
| True ribs are attached to the sternum |
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Definition
| What characteristic distinguishes a true rib from a false rib? |
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Term
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Definition
| How many pairs of ribs are true ribs? |
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Term
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Definition
| How many pairs of ribs are false ribs? |
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Term
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Definition
| What type of joint is the articulation of the first rib with the sternum? |
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Term
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Definition
| What type of joint is the articulation of ribs 2-7 with the sternum? |
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Term
| It separates the grooves for the subclavian artery and vein |
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Definition
| What is the purpose of the scalene tubercle on the first rib? |
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Term
| They have no osseous or cartilaginous attachments anteriorly |
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Definition
| Why are ribs 11 and 12 called "floating ribs"? |
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Term
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Definition
| What is the name of the lateral process of the breast? |
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Term
| The pectoralis major and the serratus anterior muscles |
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Definition
| The breast lies on what two muscles? |
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Term
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Definition
| What structure drains the lobes of the mammary glands in the breast? |
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Term
| The 4th intercostal space |
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Definition
| Where is the nipple located in males and prepubescent girls? |
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Term
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Definition
| What is the name of the pigmented area around the nipple? |
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Term
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Definition
| What is the name of the connective tissue strands separated in lobules that run through the breast and connect skin to the fibrous stoma of the mammary gland? |
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Term
Most of it drains into the axillary nodes;
The rest drains medially to the parasternal (internal thoracic) nodes, to the opposite breast, or inferiorly to the abdomen |
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Definition
| Where does lymph from the breast drain? |
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Term
1. Internal thoracic artery
2. Posterior intercostal arteries
3. Pectoral branch of the thoracoacromial artery
4. Lateral thoracic artery (or the lateral mammary artery) |
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Definition
| What are the four main arteries that supply blood to the breast? |
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Term
Pectoralis major and minor
The serratus anterior
The subclavius |
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Definition
| What are the muscles of the thoracic wall that are associated with the upper extremity? |
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Term
The external, internal, and innermost intercostal muscles
The transverses thoracic muscle |
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Definition
| What are the muscles of the thoracic wall that are associated with the thoracic cage? |
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Term
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Definition
| The skin of the anterolateral thoracic wall and the muscles are supplied by branches of what nerve? |
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Term
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Definition
| True or False: The lower cervical nerves do NOT contribute to the cutaneous innervation of the anterior trunk |
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Term
| The supraclavicular nerves (C3 and C4) branches of the cervical plexus |
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Definition
| What nerves supply the skin of the lower neck, top of the shoulder, and the area just inferior to the clavicle? |
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Term
| The fibers are carried in the intercostal nerves which run in the costal grooves |
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Definition
| Where are sensory fibers to the thoracic dermatomes carried and where do they run? |
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Term
| The lateral cutaneous branch of each intercostal nerve |
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Definition
| What sends fibers anteriorly and posteriorly around the anterolateral body wall? |
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Term
Upper extremity = branches of the brachial plexus
Thoracic cage = intercostal nerves |
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Definition
| The muscles of the anterior thoracic wall are innervated from what two sources? |
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Term
| The thoracic aorta, the subclavian artery, and the axillary artery |
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Definition
| What are the three major sources of blood for the skin and muscles of the thoracic wall? |
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Term
1. The segmental arteries
2. The nonsegmental arteries |
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Definition
| The branches of the thoracic wall arteries are divided into what two groups? |
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Term
1. The posterior intercostal arteries
2. The highest (superior) intercostal artery
3. The anterior intercostal arteries |
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Definition
| What are the three subgroups of the segmental arteries? |
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Term
1. The superior thoracic artery
2. The thoracoacromial artery
3. The lateral thoracic artery
4. The thoracodorsal artery |
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Definition
| What are the four subgroups of the nonsegmental arteries? |
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