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40 Cards in this Set

  • Front
  • Back
The manubrium is anterior to thoracic vertebrae _____, and has 3 notches which are the ________
T3&T4; suprasternal (jugular) and supraclaviculars
Body of sternum is anterior to T_______
Xiphoid process
Ossifies by age 4.
Importance of xiphosterno joint
defines inferior border of thoracic cage
Importance of sternal angle
Formed by the manubrium and sternum. Found at the level of the 2nd rib. Also pericardial sac extends to this level, and trachea bifurcates here as well.
1st rib articulates with ____________
costal incisor (notch) on manubrium
3 types of ribs
True: 1-7, attach directly to sternum (can be through costal cartilage)
False: 8-10, attach to ribs above, through costal cartilage
Floating: 11-12, a type of false rib, do not attach anteriorly

(7 true, 5 false)
surface anatomy: ribs (8)
Head: articulates with vertebra
Tubercles: artic. w/ trans process of vert
Subcostal groove - inferior aspect, houses neruovascular bundle
3 joints of thorax
costovertebral: ribs and body of vert - synovial
sternocostal: costal margin and sternum - synovial (?)
costochondral: costal margin and ribs - synchondrosis - hyaline cart
3 parts of pelvic bone and their importand features
ilium: anterior iliac spine
ischium: ishial tubercule
pubis: pubic symphasis
What type of gland is in the breast?
Modifies sweat gland
Serratus anterior
respiration. o:Ribs 1-8, i: scapula (vertebral border). Protracts scapula
Deep back muscles are innervated by
dorsal primari rami
Pectoralis Major
O: clavicle, medial 1/3 of sternum
I: Humerus
Innervation (N): lateral and medial pectoral nerves
A: adduct, internally rotate arm (?)
What is unusual about the lateral and medial pectoral nerve?
The lateral is MEDIAL to the medial nerve.
Pectoralis minor
O: Ribs 3-5
I: Scapula
N: Medial pectoral nerve
A: Depresses shoulder
Extrinsic muscles of anterior abdominal wall (4) and their function
Rectus abdominis, external oblique, internal oblique, transversus abdominis; respiration
Intrinsic thoracic muscles (3)
External intercostals: run anterior and inferior
Internal ntercostals: Perpendicular to ext. intercostal
Innermost intercostal: same as int. intercostal
Where is are the intercostal neurovasular bundles found
between internal intercostal and innermost intercostal
Blood supply and innervation of thoracic wall?
Arterial origins?
Nerve origins?
-intercostal neurovascular bundle.
-Thoracic aorta (posterior segmental branches), internal thoracic artery (branch of subclavian). Ant and Post intercostals anastomose.
-spinal nerves: mixed.
Subdivision of Ab. Cavity:

4: upper/lower right/left

inguinal ligament attaches to what parts of which bone
anterior superior iliac spine, pubic tubercle
2 components of superficial fascia
Camper's: fatty
Scarpa's: membranous
Deep fascia
wraps around muscles --> epimysium
Rectus sheath
3 flat muscles: ext/int obliques, trans abdominis
1 strap muscle: rectus abdominis
Plus aponeurosis
Linea alba
Ant to rectus ab., formed by the two aponeurosis of the ext. obliques.
aponeurosis of int oblique
wraps around rectus ab.
aponeurosis of trans abd
posterior to rectus abdominis
Arcurate line (?)
Incomplete card
Ext oblique
O: Ext aspect of lower 8 ribs
I: Iliac crest, aponeurosis of ant ab wall
Orientation: same as ext intercostal (like putting hand in pocket)
N: ?
(A: pulls chest downward, compresses ab cavity), limited flexion and rotation of spine)
Int Oblique
O: lumbodorsal fascia, iliac crest, inguinal ligament
I: Costal cartilage of last 3 ribs
Orientation: opp. of ext (like putting hand in INNER pocket)
N: Iliohypogastric/Ilioinguinal
(A: antagonist to diaphram)
Transversus Abdominis
O: Internal aspect of lower 6 costal cartilages, iliac crest
I: Linea Alba
Orientation: horizontal
N: Iliohypogastric/Ilioinguinal
(A: compression of ribs and viscera)
rectus abdominis
O: Pubic symphysis
I: Xiphoid Process, costal cartilages of 5-7
(N: thoracoabdominal nerves 7-12)
A: ?
contents of body cavity bulge out
inguinal ligament
aponeurosis of external oblique folds upon itself. O: ant sup iliac spin, pubic tubercles
inguinal canal
superior, inferior, and parallel to ing. ligament

Houses spermatic cord in males
4 walls of the inguinal canal
Anterior: aponeurosis of ex oblique
Post: transversalis fascia, reinforced by conjoint tendon
Sup: aponeurosis of int obliqu and trans. ab.
Inf: superior edge of inguinal ligament (?)
Conjoint Tendon
internal oblique aponeurosis and transversus abdominus. Helps form posterior wall of inguinal canal (along with transversalis fascia)
Superficial inguinal ring
opening in ext oblique aponeurosis
Deep inguinal ring
opening in transversalis fascia