BIOD 152 AP2 LAB 6 ACTUAL EXAM 2026/2027 | Portage Learning |
25 Questions with Rationales | Complete Answer Key | Updated Lab
Edition | Pass Guaranteed - A+ Graded
Q1 (Diagram Labeling): [Image description: Major arteries of the body - anterior view
with numbered structures]
Identify the arteries labeled 1-10:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Correct Answer: 1. Ascending aorta; 2. Aortic arch; 3. Brachiocephalic trunk; 4. Left
common carotid artery; 5. Left subclavian artery; 6. Axillary artery; 7. Brachial artery; 8.
Radial artery; 9. Ulnar artery; 10. Abdominal aorta [CORRECT]
Rationale: Understanding arterial flow from the heart:
● Ascending aorta (1): Emerges from left ventricle, gives rise to coronary arteries
(not visible here).
● Aortic arch (2): Curves posteriorly and leftward; gives three branches
(brachiocephalic, left common carotid, left subclavian).
● Brachiocephalic trunk (3): First and only branch on right; bifurcates into right
subclavian and right common carotid.
● Left common carotid (4) and left subclavian (5): Direct branches from arch.
● Axillary artery (6): Continuation of subclavian past first rib.
● Brachial artery (7): Continuation of axillary past teres major muscle.
● Radial (8) and ulnar (9): Terminal branches of brachial in cubital fossa.
● Abdominal aorta (10): Continuation of descending aorta through diaphragm.
,Common errors: Confusing brachiocephalic trunk (single vessel on right) with left
common carotid (direct branch on left). Remember: "Right branch, left branches" — the
right side gets one trunk that splits, the left gets two separate branches.
Q2 (Multiple Choice): Which artery is typically used to measure blood pressure with a
sphygmomanometer and stethoscope?
A. Radial artery
B. Brachial artery [CORRECT]
C. Femoral artery
D. Carotid artery
Correct Answer: B
Rationale: The brachial artery at the antecubital fossa is the standard site for
auscultatory blood pressure measurement because:
● It is superficial and easily accessible
● It is large enough to compress with a cuff
● It produces clear Korotkoff sounds (turbulent flow sounds) when compressed
● It represents systemic arterial pressure accurately
The stethoscope is placed over the brachial artery medial to the biceps tendon. The
radial artery (A) is used for pulse assessment but is too distal for BP measurement.
Femoral (C) and carotid (D) are used in emergency situations but not routine
measurement.
Q3 (Diagram Labeling): [Image description: Major veins of the body - anterior view with
numbered structures]
Identify the veins labeled A-H:
A. _____________
B. _____________
C. _____________
D. _____________
, E. _____________
F. _____________
G. _____________
H. _____________
Correct Answer: A. Superior vena cava; B. Brachiocephalic vein; C. Subclavian vein; D.
Internal jugular vein; E. External jugular vein; F. Axillary vein; G. Cephalic vein; H. Basilic
vein [CORRECT]
Rationale: Venous drainage pattern:
● Superior vena cava (A): Formed by union of two brachiocephalic veins; drains
upper body.
● Brachiocephalic vein (B): Each formed by subclavian + internal jugular union.
● Subclavian vein (C): Continuation of axillary past first rib; receives external
jugular.
● Internal jugular (D): Drains dural venous sinuses and deep head/neck structures.
● External jugular (E): Superficial drainage of scalp and face.
● Axillary vein (F): Continuation of brachial/basilic veins.
● Cephalic (G): Lateral superficial vein of arm; drains into axillary.
● Basilic (H): Medial superficial vein; becomes axillary vein.
Common identification errors: Mixing cephalic (lateral, "headward" toward shoulder) and
basilic (medial, becomes deeper). The median cubital vein (not shown) connects them
at the cubital fossa and is the most common venipuncture site.
Q4 (Pulse Point Identification): [Image description: Body diagram with pulse point
locations labeled 1-8]
Identify the pulse points labeled 1-8:
1.
2.
3.
4.
5.
6.
7.
25 Questions with Rationales | Complete Answer Key | Updated Lab
Edition | Pass Guaranteed - A+ Graded
Q1 (Diagram Labeling): [Image description: Major arteries of the body - anterior view
with numbered structures]
Identify the arteries labeled 1-10:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Correct Answer: 1. Ascending aorta; 2. Aortic arch; 3. Brachiocephalic trunk; 4. Left
common carotid artery; 5. Left subclavian artery; 6. Axillary artery; 7. Brachial artery; 8.
Radial artery; 9. Ulnar artery; 10. Abdominal aorta [CORRECT]
Rationale: Understanding arterial flow from the heart:
● Ascending aorta (1): Emerges from left ventricle, gives rise to coronary arteries
(not visible here).
● Aortic arch (2): Curves posteriorly and leftward; gives three branches
(brachiocephalic, left common carotid, left subclavian).
● Brachiocephalic trunk (3): First and only branch on right; bifurcates into right
subclavian and right common carotid.
● Left common carotid (4) and left subclavian (5): Direct branches from arch.
● Axillary artery (6): Continuation of subclavian past first rib.
● Brachial artery (7): Continuation of axillary past teres major muscle.
● Radial (8) and ulnar (9): Terminal branches of brachial in cubital fossa.
● Abdominal aorta (10): Continuation of descending aorta through diaphragm.
,Common errors: Confusing brachiocephalic trunk (single vessel on right) with left
common carotid (direct branch on left). Remember: "Right branch, left branches" — the
right side gets one trunk that splits, the left gets two separate branches.
Q2 (Multiple Choice): Which artery is typically used to measure blood pressure with a
sphygmomanometer and stethoscope?
A. Radial artery
B. Brachial artery [CORRECT]
C. Femoral artery
D. Carotid artery
Correct Answer: B
Rationale: The brachial artery at the antecubital fossa is the standard site for
auscultatory blood pressure measurement because:
● It is superficial and easily accessible
● It is large enough to compress with a cuff
● It produces clear Korotkoff sounds (turbulent flow sounds) when compressed
● It represents systemic arterial pressure accurately
The stethoscope is placed over the brachial artery medial to the biceps tendon. The
radial artery (A) is used for pulse assessment but is too distal for BP measurement.
Femoral (C) and carotid (D) are used in emergency situations but not routine
measurement.
Q3 (Diagram Labeling): [Image description: Major veins of the body - anterior view with
numbered structures]
Identify the veins labeled A-H:
A. _____________
B. _____________
C. _____________
D. _____________
, E. _____________
F. _____________
G. _____________
H. _____________
Correct Answer: A. Superior vena cava; B. Brachiocephalic vein; C. Subclavian vein; D.
Internal jugular vein; E. External jugular vein; F. Axillary vein; G. Cephalic vein; H. Basilic
vein [CORRECT]
Rationale: Venous drainage pattern:
● Superior vena cava (A): Formed by union of two brachiocephalic veins; drains
upper body.
● Brachiocephalic vein (B): Each formed by subclavian + internal jugular union.
● Subclavian vein (C): Continuation of axillary past first rib; receives external
jugular.
● Internal jugular (D): Drains dural venous sinuses and deep head/neck structures.
● External jugular (E): Superficial drainage of scalp and face.
● Axillary vein (F): Continuation of brachial/basilic veins.
● Cephalic (G): Lateral superficial vein of arm; drains into axillary.
● Basilic (H): Medial superficial vein; becomes axillary vein.
Common identification errors: Mixing cephalic (lateral, "headward" toward shoulder) and
basilic (medial, becomes deeper). The median cubital vein (not shown) connects them
at the cubital fossa and is the most common venipuncture site.
Q4 (Pulse Point Identification): [Image description: Body diagram with pulse point
locations labeled 1-8]
Identify the pulse points labeled 1-8:
1.
2.
3.
4.
5.
6.
7.
