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Small animal anatomy objective 5

Terms in this set (53)

this branches and supplies the skin of the neck, ear, and back of the head with sensory branches
great auricular nerve
this nerve is deep to the sternocephalicus and runs along the dorsal border of the omnotransversarius to terminate in the trapezius
accessory nerve
the _________ component is found in lymph nodes (and other organs such as the spleen and tonsils) and functions in defense from foreign agents.
cellular
the _______component basically functions to return the excess fluid and protein (collectively known as lymph) from the capillary beds back to the general circulation
vascular
this artery runs deep to the caudal surface of the rectus abdominis
cranial epigastric artery
the cranial epigastric and its superficial counterpart supply what areas of the body
skin over rectus abdominis, caudal thoracic mammae, cranial abdominal mammae
where does the heart sit
between 3rd and 6th intercostal space, ventral 2/3 of thoracic cavity
where do we see the heart in dogs
between ribs 4 and 7
these are the cartilaginous walls that split off the principal bronchi
lobar bronchi
the trachea bifurcates into a left and right
principal bronchi
the _____ is the partition between the principal bronchi at their origin from the trachea
carina
the cranial vena cava enters the heart through the
right atrium
the R azygous vein enters the heart through what
cranial vena cava , right atrium
this vein originates dorsally in the abdomen and collects all of the dorsal intercostal veins on each side of the intercostal spaces as far cranially as the 3rd or 4th
azygous vein
what are the two branches to ascending aorta
R and L coronary artery
what are the functions of the coronary arteries
supply blood to the heart muscles
what are the two branches of the aortic arch
brachiocephalic trunk, left subclavian artery
the brachiocephalic trunk is comprised of what
left and right common carotid artery, right subclavian
this artery will branch off the brachiocephalic trunk to travel the transverse foramina of the cervical vertebrae to supply blood to the spinal cord, vertebrae, brain
vertebral artery
what does the vertebral artery supply
brain , spinal cord
this branch of the brachiocephalic arises distal to the vertebral artery and exetends dorsally as far as the first rib.
costocervical trunk
what does the costocerivcal trunk supply
intercostal muscles, epaxial neck muscles
this branch off the brachiocephalic trunk leaves the thoracic vacity and travels cranially to superficial cervical lymphonodes. It supplies the superficial and deep back mulsces of the upper thoracic
superficial cervical artery
this branch off the brachiocephalic disappears into the cranial border of the transversus muscle ventrocaudally.
internal thoracic artery
what does the internal thoracic artery supply
phrenic nerve, thymus, mediastinal pleura
this nerve originates from the fifth, sixth and usually seventh cervical spinal nerve. It will supply the diaphgragm muscle
phrenic nerve
the sympathetic trunk is tacked down by ____________
ramus communicans
what will you find if you follow the thoracic portion of the sympathetic trunk cranially where the dorsal end of the first intercostal space is
cervicothoracic ganglion
the cervicothoracic ganglion is formed by the fusion of what ganglions
caudal cervical, first few thoracic
this branch from the cervicothorcic ganglion follows the vertebral artery
vertebral nerve
the two branches of the ansa subclavia unite at the
middle cervical ganglion
numerous branches called _____ will leave the middle cervical ganglion to the heart. also fund in vagus nerve
cardiac nerves
It's sympathetic portion carries preganglionic and postganglionic sympathetic axons cranially to head
vagosympathetic trunk
this is the 10th cranial nerve
vagal nerve
what is the path of the vagal nerve
course down caudally to throcic and abdomen
They send branches to the heart, trachea, and esophagus before terminating in the laryngeal muscles
recurrent laryngeal nerve
each vagus nerve divides into dorsal and ventral branches. where do the dorsal branches unite near
diaphragm
each vagus nerve divides into dorsal and ventral branches. where do the ventral branches unite near
esophagus
this is a fat filled groove around the atria and ventricles. It contains the coronary vessels and fat
coronary groove
what is the groove on the left side of the heart
paraconal interventricular groove
what is the groove on the right , near the caudal aspect of the atrial surface ventral to the coronary sulcus
subsinuosal interventricular groove
this opening in the right atrium is where there is most of the venous blood returning from the heart
coronary sinus
is the ridge between the cranial and caudal vena cavas. It diverts the inflowing blood from the two cava veins towards the right AV orifice
intravenous tubercle
this is a slight depression by the Intravenous tubercle
fossa ovalis
the blind, ear shaped pouch of the R atrium that faces cranially to the left
right auricle
the surface of the auricle wall is strengthened by
pectinate muscles
this begins in the paraconal interventricular sulcus and returns blood supplied to the heart by the left coronary artery
great cardiac vein
where is the draining for the popliteal lymph nodes
pelvic limb distal to node
what is the femoral triangle cranial, caudal, and proximal border in that order
sartorius, pectineus, abdominal wall
what are the attachments of the sacrotuberous ligament
sacrum, ischiatic tuberosity
what does the crural extensor retinaculum on the cranial crus contain tendons of
long digital extensor, cranial tibia
what tendons do the tarsal extensor retinaculum hold
long digital extensor
what does the flexor retinaculum hold
lateral digital flexor
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