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ANAT 380 Exam Questions And Answers

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©SIRJOEL EXAM SOLUTIONS 2024/2025 ALL RIGHTS RESERVED. ANAT 380 Exam Questions And Answers Diaphragm - AnswersThin, musculotendinous septum that separates the thoracic and abdominal cavities Peripheral muscular fibres - AnswersAttach to the inferior margin of the thoracic cage and the lumbar ...

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anat 380 exam questions and answers

Institution ANAT 380
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©SIRJOEL EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.

ANAT 380 Exam Questions And Answers

Diaphragm - Answers✔Thin, musculotendinous septum that separates the thoracic and abdominal
cavities

Peripheral muscular fibres - Answers✔Attach to the inferior margin of the thoracic cage and the lumbar
vertebrae, the converge on the central tendon

Right crus - Answers✔Muscular extension of the diaphragm that originates from the anterolateral
surface of the upper three lumbar vertebrae

Left crus - Answers✔Muscular extension of the diaphragm that originates from the anterolateral surface
of the upper two lumbar vertebrae

Apertures of the Diaphragm - Answers✔Caval opening, esophageal hiatus, and aortic hiatus

Caval opening - Answers✔Opening for the inferior vena cava in the central tendon at the T8 level

Esophageal hiatus - Answers✔Opening for the esophagus at level T10

Aortic hiatus - Answers✔Opening for the abdominal portion of the aorta between the left and right crus,
anterior to T12

Intercostal muscles - Answers✔Series of muscle layers between adjacent ribs, helping to form the chest
wall. Twisting and reaching upward my result in strain or tear.

External intercostal muscles - Answers✔Fibres run anteroinferiorly from the lower border of the rib.

Internal intercostal muscles - Answers✔Fibres run posterosuperiorly from the upper border of the rib.

Manubrium - Answers✔Most superior part of the sternum

Manubriosternal joint - Answers✔Articulation between the manubrium and sternal body

Sternal body - Answers✔Middle portion of the sternum

Xiphisternal joint - Answers✔Articulation between the sternal body and diploid process

Xiphoid process - Answers✔Most inferior portion of the sternum

Vertebral arch and body - Answers✔Form the vertebral foramen to protect and house the spinal cord

Pedicle - Answers✔Forms the intervertebral foramen where a spinal nerve exits the vertebral canal

, ©SIRJOEL EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
Spinous process, transverse process, and body - Answers✔Attachment site for muscles and ligaments of
the spine

Intervertebral discs - Answers✔Cartilaginous joints consisting of the outer annulus fibrosis and central
nucleus pulposus; act as shock absorbers and allow for some minimal movement

Annulus fibrosis - Answers✔Outer ring of the intervertebral disc made of fibrocartilage

Nucleus pulposus - Answers✔Gelatinous structure that functions to resist compressive force

Ribs (function) - Answers✔Protect the thoracic cavity, where many vital organs and vessels are located

Ribs (location) - Answers✔Deep to the skin and superficial to the thoracic cavity containing the heart,
lungs, and esophagus

Costal cartilage - Answers✔Connects the ribs to the sternum

Superior thoracic inlet - Answers✔Allows passage between the thorax and the neck

Inferior thoracic inlet - Answers✔Allows passage between the thorax and abdomen

Internal thoracic arteries - Answers✔Main blood supply of the anterior thoracic wall; located lateral to
the sternum

Anterior intercostal arteries - Answers✔Arise from the internal thoracic arteries; pass around the
thoracic wall in the costal grooves of ribs to form an anastomosis (direct connection) with posterior
intercostal arteries

Posterior intercostal arteries - Answers✔Branches off the thoracic aorta; travel anteriorly to anastomose
with the anterior intercostal arteries

Subcostal arteries - Answers✔Run inferior to the costal margin

Intercostal nerves 1-6 - Answers✔Distributed in their intercostal spaces, innervating the intercostal
muscles of the thoracic wall and overlying skin

Intercostal nerves 7-12 - Answers✔Innervates the abdominal muscles and overlying skin

Phrenic nerve - Answers✔Formed by spinal nerves C3-C5; provides motor innervation to the diaphragm,
and carry sensory innervation to the central tendon of the diaphragm

Suspensory ligaments (of Cooper) - Answers✔Separate the lobes in the breast

Lactiferous ducts - Answers✔Breast milk ducts

Arterial supply of the lateral breast - Answers✔Lateral thoracic arteries-branches of the axillary artery

Arterial supply of the medial breast - Answers✔Internal thoracic (mammary) artery

Heart (location) - Answers✔Lies behind the sternum and central part of the thoracic cage

, ©SIRJOEL EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
Apex - Answers✔Inferior tip of the heart

Pericardium - Answers✔Sac that encloses the heart and the roots of the great vessels entering and
leaving it

Interventricular septum (IV) - Answers✔Divides the left and right ventricles

Aorta - Answers✔Carries oxygenated blood away from the heart

Brachiocephalic artery - Answers✔Branch of the aorta the bifurcates into the right common carotid
artery and the right subclavian artery

Left subclavian artery - Answers✔Branch of the aorta that supplies blood to the left arm; gives rise to
the left internal thoracic artery

Left common carotid artery - Answers✔Branch of the aorta that supplies the left side of the neck and
face

Right subclavian artery - Answers✔Gives rise to the right internal thoracic artery

Left and right aortic sinuses - Answers✔Give rise to the left and right coronary arteries; supplies the
heart organ itself

Costomediastinal recess - Answers✔Pleural recess found between the costal and mediastinal parietal
pleura; left is larger than the right because it overlies the heart

Costodiaphragmatic recess - Answers✔Pleural recess between the costal and diaphragmatic pleura,
below the inferior part of the lungs.

Parietal pleura (innervation) - Answers✔Intercostal and phrenic nerves

Hilum - Answers✔Depression, centred in the medial surface of the lung, where structures enter and exit

Root of the lungs - Answers✔Collection of structures that enter and exit the lungs, connecting the lungs
to the trachea and the heart

Brachiocephalic veins - Answers✔Drain into the superior vena cava

Azygos vein - Answers✔Carries blood from the right posterior intercostal veins to drain into the superior
vena cava

(Accessory) Hemiazygos vein - Answers✔Drains the left posterior intercostal veins, located

Right posterior hemiazygos vein - Answers✔Drains directly into the azygos vein

Right bronchial veins - Answers✔Remove deoxygenated blood from the lungs

Thoracic duct - Answers✔Drains lymph from the left side of the head, neck, thorax, upper limb, and all
of the structures below the diaphragm

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