Pectoral Region Flashcards
The costal cartilage of 2nd rib articulates with sternum at.
Sternal angle.
Nipple in males lies in.
4th intercostal space just medial to the midclavicular line.
Skin above sternal angle is supplied by.
Supraclavicular nerves (C3 and C4)
Skin below sternal angle is supplied by.
Anterior and lateral cutaneous branches of 2nd-6th intercostal nerves (T2 and T6)
Muscles of pectoral region.
Pectoralis major, pectoralis minor, subclavius, serratus anterior.
Largest muscle of pectoral region.
Pectoralis major.
Nerve supply of pectoralis major.
Lateral (C5-C7) and medial pectoral (C8 and T1) nerves.
Origin of pectoralis major.
Small clavicular head and large stenocostal head.
Insertion of pectoralis major.
Lateral lip of intertubular sulcus.
Origin of pectoralis minor.
3rd, 4th, 5th rib.
Insertion of pectoralis minor.
Medial border and upper surface of corocoid process.
Nerve supply of pectoralis minor.
Medial and lateral pectoral nerves.
Origin of subclavius muscle.
First rib at costochondral junction.
Insertion of subclavius muscle.
Subclavian groove.
Nerve supply of subclavian nerve.
Subclavian nerve.
Insertion of serratus anterior.
Costal surface of scapula along its medial border.
Nerve supply of serratus anterior.
Long thoracic nerve (C5-C7)
Boxer’s muscle.
Serratus anterior.
Deep fascia covering the anterior aspect of the pectoralis major muscle.
Pectoral fascia.
Fascia present b/w the clavicle and pectoralis minor muscle.
Clavipectoral fascia.
Modified apocrine sweat gland.
Mammary gland.
Breast is located in.
Superficial fascia of pectoral region.
Site of high percentage of breast tumor.
Foremen of Langer.
Breast consists of.
Skin, stroma (suspensory ligaments of Cooper and fat) and parenchyma (lobes of the breast)
Nipple is present in.
Fourth intercostal space.
Enlarged sebaceous glands during pregnancy.
Montgomery’s tubercles.
Suspensory ligaments of Cooper connects.
Dermis is skin to breast ducts and pectoralis major.
Which part of breast secretes milk.
Parenchyma.
The parenchyma contains.
15-20 lobes.
Reservoir of milk during lactation.
Lactiferous sinus.
Blood supply of breast is mainly derived from.
Lateral thoracic artery.
Superficial veins drain into.
Internal thoracic vein.
Deep veins drain into.
Internal thoracic, axillary and posterior intercostal veins.
A plexus of lymph vessels deep into areola.
Subareolar plexus of Sappey.
The breast develops from.
Milk line of Schultz.
