CSCC BIO 2300 Unit 4- Exam Questions with Verified Solutions Latest Update () Graded A+

CSCC BIO 2300 Unit 4- Exam Questions with Verified Solutions Latest Update () Graded A+ physical structure of rib cage - Answers Osteocartilaginous type of cartilage that forms costal cartilages - Answers hyaline cartilage 3 sections of the sternum - Answers manubrium, body, xiphoid process latererally, manubrium forms joints with - Answers costal cartilages of rib 1 Inferiorly, the manubrium forms joints with these two structures - Answers body of sternum and part of 2nd costal cartilage sternal angle is a clinical maker for - Answers 2nd rib to listen to heart place stethoscope on intercostals - Answers 2 and 5 latererally, sternal body forms joints with - Answers costal cartilages tip of xiphoid process = clinical maker for - Answers superior liver surface apex of heart central tendon of diaphragm true ribs - Answers 1-7 attach directly to sternum false ribs - Answers 8-10 ribs; indirectly attached to sternum with costal cartilage floating ribs - Answers Ribs 11-12 all ribs form joints posteriorly with - Answers thoracic vertebral bodies The tubercle on the ribs articulates with the costal facet on - Answers transverse processes of vertebrae ribs 9 = 3 joints - Answers t8 t9 transverse costal facet Rib 1 is distinct from all others. Describe its 3 unique physical features. - Answers flattened c- shaped grooves for subclavian vessels directly inferior and posterior to clavicle rib 11 and 12 = single joint with - Answers respective vertebral bodies breast milk produced in this gland - Answers modified apocrine sweat gland Pathway of breast milk - Answers cells in lobules (15-20) drains lactiferous duct emptying lactiferous sinus to nipple 4 visible signs of breast cancer - Answers painless lumb painful lumb swelling/puckering/ redness in skin bloody discharge from nipple structures that diaphragm is connected - Answers a: xiphoid process of sternum al: costal cartilages of ribs 6-10 pl: portion of ribs 12 p: bodies of L1-L3 vertebrae Define epimysium - Answers connective tissue covering muscle 2 muscles whose epimysium blends with diaphragms - Answers quadratus lumborum m. psoas m. central tendon of diaphragm - Answers part where crescent shaped diaphragm m. attaches centrally The 3 openings in the diaphragm are the: - Answers caval hiatus esophageal hiatus aortic hiatus intercostal muscles that elevate the ribs - Answers external and internal intercostal m. 2 intercostal m. that depress the ribs - Answers transverse thoracic m interosseous (innermost intercostal) intercoastal muscles with posterior membrane - Answers internal intercostal m intercoastal muscles with anterior membrane - Answers external intercostal m. intercoastal muscles lying directly under parietal pleura - Answers innermost intercostal m. 3 accessory mm. for forced inhalation - Answers pect major pect minor serratus anterior 2 accessory thoracic mm. for forced exhalation - Answers internal and innermost intercostals abdominal m. (decrease volume in thorax) The nerve that controls contractions of the diaphragm - Answers phrenic n. (roots: c3,c4,c5) intercostal n. come from anterior rami of which spinal nn. - Answers T1-T11 and w/ in costal groove of ribs 3 Coverings of the heart from superficial to deep - Answers s: fibrous pericardium m: parietal serous pericardium d: visceral serous pericardium (epicardium)