anatomy 2 lab practical 2- ECGs and blood vessels

P wave

Atrial depolarization (atria contracting)

QRS complex

Ventricular depolarization (ventricles contracting)

T wave

Ventricular repolarization (ventricles resetting)

PR interval

Start of P wave to start of QRS; reflects AV node conduction (normal 120–200 ms)

QT interval

Start of QRS to end of T wave; includes ventricular depolarization + repolarization

PR segment

End of P wave to start of QRS; AV node delay.

ST segment

End of S wave to start of T wave; early ventricular repolarization.

calculate ECGs

60 sec / ∆x sec

ascending aorta

• carries blood from left ventricle to aortic arch

• location: superior to the heart

aortic arch

• carries blood from ascending aorta to brachiocephalic, L common carotid, L subclavian, thoracic aorta

• location: superior to ascending aorta,

brachiocephalic artery/trunk

• carries blood from aortic arch to arm and head (R common carotid + R subclavian)

• location: superior to aortic arch, right side

R subclavian artery

• carries blood from aortic arch to axillary artery

• location: branches to right of brachiocephalic artery

R common carotid artery

• carries blood from brachiocephalic artery to right internal and right external artery

• location: branches off of top of brachiocephalic artery

L common carotid artery

• carries blood from aortic arch to left internal and external carotid arteries

• location: middle branch off of aortic arch

R and L internal carotid artery

• carries blood from common carotid to brain

  • location: brain

R and L external carotid artery

• carries blood from common carotid to face and scalp

• location: face and scalp

L subclavian artery

• carries blood from aortic arch to axillary artery

• location: branches off of left ascending aorta

R and L axillary artery

• carries blood from subclavian artery to brachial artery

• location: upper arm, near armpit

R and L brachial artery

• carries blood from axillary artery to radial and ulnar artery

• location: upper arm

R and L radial artery

• carries blood from brachial artery to hands

• location: radial side of lower arm

R and L ulnar artery

• carries blood from brachial artery to hands

• location: ulnar side of lower arms

thoracic aorta

• carries blood from aortic arch to abdominal aorta

• location: thoracic cavity

abdominal aorta

• carries blood from thoracic aorta to R/L common iliac arteries

• location: abdominal cavity

R and L common iliac arteries

• carries blood from abdominal aorta to R/L external and internal arteries

  • location: anterior to sacroiliac joints

R and L external iliac artery

• carries blood from common iliac artery to R/L femoral artery

• location: front of pelvis, upper leg

R and L internal iliac artery

• carries blood from common iliac artery to supply abdominal organs with oxygenated blood

• location: inside pelvis

R and L femoral artery

• carries blood from common iliac to R/L popliteal artery

• location: upper leg

R and L popliteal artery

• carries blood from femoral artery to supply lower legs with blood

• location: behind knee

R and L radial vein

• carries blood from hands to brachial vein

• location: radial side of lower arm

R and L ulnar vein

• carries blood from hands to brachial vein

• location: ulnar side of lower arm

R and L brachial vein

• carries blood from ulnar and radial vein to axillary vein

• location: upper arm

R and L axillary vein

• carries blood from brachial vein to R/L subclavian vein

• location: shoulder, armpit area

R and L subclavian vein

• carries blood from axillary vein to R/L brachiocephalic vein

• location: connects to right and left brachiocephalic vein

R and L internal jugular vein

• carries blood from brain to R/L brachiocephalic vein

• location: brain

R and L external jugular vein

• carries blood from face and scalp to R/L brachiocephalic vein

• location: face and scalp

R and L brachiocephalic vein

• carries blood from head and arms to superior vena cava

• location: connects to superior vena cava

superior vena cava

• carries blood from R/L brachiocephalic veins to right atrium

• location: superior to heart

R and L popliteal vein

• carries blood from great saphenous vein (lower leg) to femoral vein

• location: behind knee

R and L femoral vein

• carries blood from popliteal vein (lower leg) to external iliac

  • location: upper leg

R and L great saphenous vein

• carries blood from feet to femoral vein

• location: medial lower leg

R and L external iliac vein

• carries blood from femoral vein to common iliac

• location: front of pelvis, lower leg

R and L internal iliac vein

• carries blood from pelvic organs to common iliac

• location: pelvis

R and L common iliac vein

• carries blood from external/internal iliac vein to inferior vena cava

• location: connects to inferior vena cava

inferior vena cava

• carries blood from external/internal iliac vein to right atrium

• location: inferior to heart, thoracic and abdominal cavity