Final Exam- Weeks 8-9 Flashcards
deoxygenated blood flow of the heart
- SVC/IVC
- right atrium
- tricuspid valve
- right ventricle
- pulmonary valve
- pulmonary trunk
- pulmonary arteries
oxygenated blood flow of the heart
- pulmonary veins
- left atrium
- bicuspid valve
- left ventricle
- aortic valve
- aorta
coronary circulation components
- ascending aorta
- left coronary artery (LCA)
- right coronary artery (RCA)
- aortic valve
- aortic sinus
systole
aortic valve opens
- coronary arteries blocked
diastole
aortic valve closes
- coronary perfusion occurs (passing of blood)
arterial coronary circulation - left
- LCA
- circumflex artery
- left anterior descending artery
arterial coronary circulation - right
- RCA
- marginal artery
- posterior descending artery
venous coronary circulation
- coronary sinus
- small cardiac vein
- middle cardiac vein
- great cardiac vein
aortic arch
- brachiocephalic trunk
- left common carotid artery
- left subclavian artery
- right subclavian artery
- right common carotid artery
pathway for systemic circulation
- pulmonary v
- left atrium
- bicuspid valve
- left ventricle
- aortic valve
- aorta
what arteries supply the head and neck
left and right common carotid arteries
internal carotid artery
supplies the brain
external carotid artery
supplies the head and neck
what does the internal carotid artery exit via
carotid canal
external carotid artery branches
- superior thyroid artery
- ascending pharyngeal artery
- lingual artery
- facial artery
- occipital artery
- posterior auricular artery
- maxillary artery
- superficial temporal artery
mnemonic to remember external carotid artery branches
S - snails
P - prefer
M - moist
O - oily
A- and
F - fluffy
L - leaves
S - sir
upper limb arterial supply
- subclavian artery
- axillary artery
- brachial artery
- ulnar artery
- radial artery
hand arterial supply
- ulnar artery (superficial palmar branch)
- radial artery (superficial palmar branch)
- superficial palmar arch
- digital branches
arterial supply of the thorax
- aortic arch
- subclavian artery
- descending (thoracic) aorta
- posterior intercostal arteries
- internal thoracic artery
- anterior intercostal arteries
venous drainage of the head and neck
- facial vein
- internal jugular vein
- external jugular vein
- anterior jugular vein
- subclavian vein
- brachiocephalic vein
venous drainage of the upper limb
- median cubital vein
- basilic vein
- cephalic vein
- brachial veins
- axillary vein
- subclavian vein
what branches off the superior vena cava
- brachiocephalic veins
- subclavian vein
- internal jugular vein
what does the brachiocephalic vein drain
upper limb and head/necks
what does the subclavian vein drain
upper limbs
what does the internal jugular vein drain
head and necks
venous drainage of the thorax
- aygous vein
- accesory hemiazygous vein
- posterior intercostal veins
- hemiazygous vein
unpaired branches in the abdominal aorta
- celiac trunk
- superior mesentaric artery (SMA)
- inferior mesentaric artery (IMA)
celiac trunk branches
- left gastric artery
- common hepatic artery
- splenic artery
what does the left gastric artery supply
lesser curvature of stomach
what does the common hepatic artery supply
liver
what does the splenic artery supply
spleen
common hepatic artery branches
- cystic artery
- proper hepatic artery
- right gastric artery
- gastroduodenal artery
what does the cystic artery supply
gallbladder
what does the proper hepatic artery supply
liver
what does the right gastric artery supply
the lesser curvature of the stomach
branches of the gastroduodenal artery
- superior pancreaticoduodenal arteries
- right gastro-omental artery
what do the superior pancreaticoduodenal arteries supply
pancreas and duodenum
what does the right gastro-omental artery supply
greater curvature of the stomach
splenic artery branches
- short gastric artery
- left gastro-omental artery
- pancreatic branches
what does the short gastric artery supply
fundus
what does the left gastro-omental artery supply
greater curvature of the stomach
route of blood supply to the greater curvature of the stomach
- celiac trunk
- common hepatic artery
- gastroduodenal artery
- right gastro-omental artery
superior mesentaric artery branches
- middle colic artery
- inferior pancreaticduodenal artery
- right colic artery
- jejunal arteries
- ileocolic artery
- ileal arteries
what does the middle colic artery supply
transverse colon
what does the inferior pancreaticoduodenal artery supply
pancreas and duodenum
what does the right colic artery supply
ascending colon
what does the ileocolic artery supply
cecum
what does the ileul artery supply
ilium
what do the ilial and jejunal arteries branch into
arterial arcades - give off the vasa recta
which arteries form an anastomosis between the celiac trunk and SMA
superior and inferior pancreaticoduodenal arteries
inferior mesentaric artery branches
- left colic artery
- sigmoid arteries
- superior rectal artery
what does the left colic artery supply
descending colon
what does the sigmoid arteries supply
sigmoid colon
what does the superior rectal artery supply
rectum
paired branches
- right renal artery
- left renal artery
right vs left renal artery supply
right renal artery - right kidney
left renal artery - left kidney
pelvic blood supply
- abdominal aorta
- common iliac arteries
- external iliac artery
- internal iliac artery
what does the external iliac artery supply
lower limb
what does the internal iliac artery supply
pelvis
branches of the internal iliac artery
- posterior division - pelvic muscles
- anterior division - pelvic viscera
arterial supply of the lower limb
- abdominal aorta
- common iliac artery
- external iliac artery
- popliteal artery
- femoral artery
- deep femoral artery
- superior genicular arteries
- inferior genicular arteries
- anterior tibial artery
- posterior tibial artery
- fibular artery
venous drainage of the abdomen
- superior mesenteric vein
- inferior mesenteric vein
- splenic vein
- portal vein
- hepatic veins (3)
- IVC
- left and right renal veins
what does the portal vein drain
GI tract
what does the superior mesenteric veins drain
small intestine
what does the inferior mesenteric veins drain
large intestine
pelvic venous drainage
- external iliac vein
- internal iliac vein
- common iliac vein
- IVC
lower limb venous drainage
- anterior tibial veins
- posterior tibial veins
- popliteal vein
- great saphenous vein
- femoral vein
- external iliac vein
- up pelvis
which renal vein travels anterior to the aorta
left renal vein
anterolateral abdominal wall
- external obliques
- internal obliques
- transversus abdominis
anterior abdominal wall
- rectus abdominis
- rectus sheath
external oblique
- most superficial
- hand in pock’E’ts
ORIGIN of external oblique
ribs 5-12
INSERTION of external oblique
- iliac crest
- pubis
ACTION of external oblique
Bilateral: flexion of trunk
Unilateral: contralateral rotation of trunk (rotating towards opp sides - bicycle crunch
internal oblique
- middle layer
- hands in armp’I’ts
ORIGIN of internal oblique
- inguinal ligament
- iliac crest
- lumbodorsal fascia
INSERTION of internal oblique
ribs 10-12
ACTION of internal oblique
Bilateral: abdominal compression
Unilateral: ipsilateral rotation (same side rotation)
transversus abdominis
- deepest layer
- straight across fibres
ORIGIN of transversus abdominis
- costal margin
- iliac crest
- inguinal ligament
- thoracolumbar fascia
INSERTION of transversus abdominis
- linea alba
- xiphoid process
- pubis symphysis
ACTION of transversus abdominis
rotation and flexion of the trunk
ORIGIN of rectus abdominis
pubic bone
INSERTION of rectus abdominis
- xiphoid process
- ribs 5-7
ACTION of rectus abdominis
- trunk flexion
- aides in pelvic stability
rectus sheath
surrounds rectus abdominis anteriorly and posteriorly
what forms the rectus sheath
- external oblique aponeurosis
- internal oblique aponeurosis
- transversus abdominis aponeurosis
arcuate line
between umbilicus and pubis
- separates layers of the rectus sheath
anterior rectus sheath
- external oblique aponeurosis
- 1/2 internal oblique aponeurosis
posterior rectus sheath
- 1/2 internal oblique aponeurosis
- transversus abdominis aponeurosis
transversalis fascia
deep to the rectus sheath
- in direct contact with rectus abdominis
***posterior
above the arcuate line
- anterior rectus sheath
- posterior rectus sheath
below the arcuate line
- anterior rectus sheath
- transversalis fascia
superficial to deep around the rectus abdominis muscle at the level of the umbilicus
- external oblique aponeurosis
- internal oblique aponeurosis
- rectus abdominis
- internal oblique aponeurosis
- transversus abdominis
anterior abdominal wall muscles
- EO
- IO
- tranversus abdominis
- inguinal ligament
- linea alba
posterior abdominal wall muscles
- psoas minor
- psoas major
- quadratus lumborum
- illiacus
ORIGIN of illiacus
iliac fossa
INSERTION of illiacus
lesser trochanter
ACTION of illiacus
flexion and external rotation of the hip
ORIGIN of psoas major
transverse processes T12-L5
INSERTION of psoas major
lesser trochanter
ACTION of psoas major
flexion of hip
ORIGIN of psoas minor
lateral aspect of T12 and L1
INSERTION of psoas minor
iliopectineal line
ACTION of psoas minor
assists in trunk flexion
ORIGIN of quadratus lumborum
iliac crest
INSERTION of quadratus lumborum
- transverse processes of L1-L5
- rib 12
ACTION of quadratus lumborum
Bilateral: trunk extension
Unilateral: lateral trunk flexion
quadratus lumborum
in lumbar region
inguinal region
left and right hypogastric regions
key structures of the inguinal region
- inguinal ligament
- inguinal canal
inguinal ligament bony attachements
ASIS attaches to pubis
functions of the inguinal ligament
- anchors abdominal muscles
- supports soft tissues of the groin
location of the inguinal canal
- lower anterior abdominal wall (4cm)
- extends from deep inguiinal ring to the superficial inguinal ring for termination
superficial inguinal ring
opening in external oblique aponeurosis
- inferior termination point
deep inguinal ring
evagination in transversalis fascia
borders of the inguinal canal
anterior wall: EO aponeurosis
posterior wall: transversalis fascia
inferior (floor): inguinal ligament
superior (roof): fibres of transversus abdominis and IO
contents of the inguinal canal in males
- spermatic cord
- gonadal vessels (testicular artery and vein)
- ilioinguinal nerve
- lymphatics
contents of the inguinal canal in females
- round ligament of the uterus
- ilioinguinal nerve
- lymphatics
sensory innervation of the abdomen
dermatomes
motor innervation of the abdomen
- thoracoabdominal nerves
- subcostal nerve
- lumbar plexus
dermatomes
- cutaneous innervation
- arranged in inferiorly sloping parallel rows around the abdomen
- T10 (umbilical) and L1 (inguinal)
thoracoabdominal nerve innervation
T7-T11
subcostal nerve innervation
T12
lumbar plexus innervation
L1
- iliohypogastric nerve
- ilioinguional nerve
location of the lumbar plexus
- posterior abdominal wall
- lumbar spinal nerves L1-L4
- innervation mainly to lower limb
iliohypogastric nerve
L1
ilioinguinal nerve
L1
genitofemoral nerve
L1,L2
lateral femoral cutaneous nerve
L2, L3
femoral nerve
L2, L3, L4
obturator nerve
L2, L3, L4
lumbosacral trunk
L4, L5
lymphatic drainage - superficial
drains cutaneous and subcutaneous structures
lymph drainage above the umbilicus
axillary nodes
lymph drainage below the umbilicus
superficial inguinal nodes
lymphatic drainage - deep
- superficial inguinal nodes
- deep inguinal nodes
- common iliac nodes
- lumbar nodes
- into cisterna chyli
lymphatic drainage - return to venous circulation - left abdomen below umbilicus
- cisterna chyli (drains into thoracic duct)
- axillary nodes (left)
- thoracic duct
lymphatic drainage - return to venous circulation - right abdomen above the umbilicus
- axillary nodes (right)
- right lymphatic duct
muscles of facial expression
- superficial (subcutaneous) muscles
- origins - facial bones of adjacent
- insertions - skin
functions of the muscles of facial expression
- sphincters/dilators
- facial expression alteration
frontalis
epicranial group (occipitofrontalis)
action of frontalis
draws scalp back and raises eyebrows
innervation of frontalis
CN VII (temporal branch)
blood supply to frontalis
internal and external carotid artery
venous drainage of frontalis
ophthalmic vein
corrugator supercilii
orbital group
action of corrugator supercilii
draws eyebrows medially and inferiorly
innervation to corrugator supercilii
CN VII (temporal)
blood supply to corrugator supercilii
ophthalmic artery
venous drainage of corrugator supercilii
superior ophthalmic vein
orbicularis oculi
orbital group
1. orbital part
2. palpebral part
3. lacrimal part