Question 1

________ Labia minora
A) Urogenital folds
B) Rete testis
C) Glandular plate
D) Genital tubercle
E) External oblique aponeurosis

Accepted Answer

The labia minora are derived from the urogenital folds during embryonic development.

Question 2

________ Formed by fusion of the dorsal aortae
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Formed by fusion of the...

Question 3

________ Becomes ligamentous during infancy
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Becomes ligamentous during infancy
A) A
B)...

Question 4

________ Remains of the septum primum
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Remains of the septum primum
A)...

Question 5

________ Round ligament of the liver
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The intra-abdominal part of the fetal umbilical vein becomes the adult round ligament of the liver (L.ligamentum teres hepatis).It passes from the umbilicus to the porta hepatis,where it attaches to the left branch of the portal vein.

Question 6

________ Septum secundum
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Septum secundum
A) A
B) B
C) C
D)...

Question 7

________ Carries poorly oxygenated blood into the right atrium
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The sinus venosus is a part of the fetal heart that carries poorly oxygenated blood from the body back into the right atrium. This is necessary because when the fetus is in the womb, all oxygenation and waste removal happens through the placenta, not through the fetal lungs. The other answer choices are not directly involved in carrying poorly oxygenated blood into the right atrium.

Question 8

________ Forms from the sixth pharyngeal arch artery
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The sixth pharyngeal arch artery forms the pulmonary arteries, which arise from the right ventricle (part D). Choices A, B, C, and E are not directly related to the sixth pharyngeal arch artery.

Question 9

________ Derivative of an intersegmental artery
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Derivative of an intersegmental artery
A)...

Question 10

________ Ductus venosus
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The ductus venosus is a fetal blood vessel that connects the umbilical vein to the inferior vena cava, allowing the majority of oxygenated blood to bypass the liver and enter the systemic circulation.

Question 11

________ Navicular fossa
A) Urogenital folds
B) Rete testis
C) Glandular plate
D) Genital tubercle
E) External oblique aponeurosis

Accepted Answer

The navicular fossa is a depression on the underside of the glans penis, which is formed by the fusion of the urethral folds during development. The glandular plate is the precursor to the glans penis and is located on the underside of the penis, where the navicular fossa is located. Therefore, choice C (glandular plate) is the best answer. None of the other choices are related to the navicular fossa.

Question 12

________ Opening in the septum secundum
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Opening in the septum secundum
A)...

Question 13

________ Right recurrent laryngeal nerve
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The right recurrent laryngeal nerve hooks under the right sixth pharyngeal arch artery during embryonic development.

Question 14

________ Derived from the third aortic pharyngeal arch artery
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Derived from the third aortic...

Question 15

________ Carry relatively little fetal blood
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Carry relatively little fetal blood
A)...

Question 16

________ Floor of the oval fossa
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The oval fossa is a depression in the interatrial septum of the heart. During fetal development, it is necessary for blood to bypass the lungs, so the ductus arteriosus shunts blood away from the pulmonary artery and towards the aorta. The umbilical vein brings oxygenated blood from the placenta to the fetus. The sinus venosus receives blood from the superior vena cava and inferior vena cava. The sixth pharyngeal arch artery is involved in the development of the great vessels of the neck and head. The septum primum is a thin layer of tissue that grows downward from the superior part of the atrial septum and contributes to the closure of the oval foramen, which allows blood to flow from the right atrium to the left atrium in fetal life. Therefore, B is the correct answer as the septum primum is a component of the interatrial septum and the oval fossa.

Question 17

________ Derived from the truncus arteriosus
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Derived from the truncus arteriosus
A)...

Question 18

________ Arterial shunt
A) Ductus arteriosus
B) Septum primum
C) Sixth pharyngeal arch artery
D) Sinus venosus
E) Umbilical vein

Accepted Answer

The ductus arteriosus is an arterial shunt that connects the pulmonary artery to the aorta in the fetal heart, allowing oxygenated blood to bypass the lungs. After birth, the ductus arteriosus is no longer needed and closes within a few days.

Question 19

________ Directs blood into the left atrium
A) A
B) B
C) C
D) D
E) E

Accepted Answer

Based on the diagram provided, structure C appears to be the mitral valve, which directs blood flow from the left ventricle into the left atrium.

Question 20

________ Carries well-oxygenated blood
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Carries well-oxygenated blood
A) A
B) B
C)...

Quiz 1: Gametogenesis and Fertilization

________ Labia minora

________ Formed by fusion of the dorsal aortae

________ Becomes ligamentous during infancy

________ Remains of the septum primum

________ Round ligament of the liver

________ Septum secundum

________ Carries poorly oxygenated blood into the right atrium

________ Forms from the sixth pharyngeal arch artery

________ Derivative of an intersegmental artery

________ Ductus venosus

________ Navicular fossa

________ Opening in the septum secundum

________ Right recurrent laryngeal nerve

________ Derived from the third aortic pharyngeal arch artery

________ Carry relatively little fetal blood

________ Floor of the oval fossa

________ Derived from the truncus arteriosus

________ Arterial shunt

________ Directs blood into the left atrium

________ Carries well-oxygenated blood