BIOS256 Week 8: Exam 3 (Oct 2026)

BIOS256 Week 8: Exam 3 [Chamberlain]

Question

During erection, blood primarily fills which vascular spaces in the penis?

1. Seminiferous tubules
2. Corpora cavernosa ✅
3. Epididymis
4. Corpus spongiosum
5. Glans penis

Question

What is the highlighted reproductive structure indicated by the arrow?

1. Ovaries
2. Mons pubis
3. Uterus ✅
4. Urinary bladder
5. Clitoris

Question

Classify each structure according to the embryonic germ layer it arises from.

Structure	Ectoderm	Mesoderm	Endoderm
Kidneys		✅
Nervous system	✅
Skeletal muscle		✅
Epidermis of the skin	✅
Lining of the digestive tract			✅

Correct Answers:

1. Kidneys → Mesoderm ✅
2. Nervous system → Ectoderm ✅
3. Skeletal muscle → Mesoderm ✅
4. Epidermis of the skin → Ectoderm ✅
5. Lining of the digestive tract → Endoderm ✅

Question

Classify each ABG finding as acidosis, alkalosis, or normal presuming the acid-base imbalances are uncompensated.

Parameter	Acidosis	Normal	Alkalosis
HCO₃⁻ = 18 mEq/L	✅
pH = 7.40		✅
PaCO₂ = 30 mmHg			✅
pH = 7.52			✅
pH = 7.25	✅

Question

Which of the following is the correct order of the stages of labor?

1. Expulsion phase → placental phase → dilation phase
2. Expulsion phase → dilation phase → placental phase
3. Dilation phase → placental phase → expulsion phase
4. Dilation phase → expulsion phase → placental phase ✅
5. Placental phase → dilation phase → expulsion phase……………………………………purchase this entire exam at $50 only