Q.166 Zoology ⭐ 360° Option Elimination Active

NEET 2023 Zoology Question 166 Solution

Topic: Human Reproduction · Official NTA Booklet Code G5

Question

Given below are two statements: Statement I: Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct. Statement II: The cavity of the cervix is called cervical canal which along with vagina forms birth canal. In the light of the above statements, choose the correct answer from the options given below:

(1)Statement I incorrect but Statement II is true.
(2)Both Statement I and Statement II are true.
(3)Both Statement I and Statement II are false.
(4)Statement I is correct but Statement II is false.

✓

Verified Against NTA Final Answer Key

Option (2) : Both Statement I and Statement II are true.

📚 Human Reproduction Easy

📋 Given Parameters & Problem Setup

Statement I Vas deferens receives duct from seminal vesicle and opens into urethra as ejaculatory duct.

Statement II Cervical canal along with vagina forms birth canal.

⚡

The 30-Second Exam Hall Shortcut: ⚡ Reproductive Duct System Dual Check

⏱️ Save ~20 seconds

Both statements are verbatim sentences from NCERT Human Reproduction! Vas deferens + seminal vesicle duct = ejaculatory duct; Cervical canal + vagina = birth canal. Both are true!

1 Check Statement I: Vas deferens joins seminal vesicle duct to form the ejaculatory duct entering the prostatic urethra -> True.

2 Check Statement II: Cervical canal plus vagina forms the parturient birth canal -> True.

3 Both Statement I and Statement II are true.

4 Match Option (2).

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Human Reproduction male and female genital duct anatomy.

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Evaluation of Statement I (Male Ejaculatory Duct Formation)

The vas deferens ascends from the scrotum, enters the pelvic cavity through the inguinal canal, loops over the urinary bladder, and unites with the duct of the seminal vesicle to form the common ejaculatory duct:

\text{Vas deferens} + \text{Seminal vesicle duct} \longrightarrow \mathbf{\text{Ejaculatory duct (opens into prostatic urethra)}}

Step 2

Evaluation of Statement II (Parturition Birth Canal)

In the human female reproductive tract, the narrow spindle-shaped lumen traversing the cervix connects the uterine body to the vagina:

\mathbf{\text{Birth Canal}} = \text{Cervical Canal} + \text{Vagina}

Step 3

Verbatim NCERT Reference

NCERT states verbatim: - "It [vas deferens] receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct." (Statement I is TRUE) - "The cavity of the cervix is called cervical canal which along with vagina forms the birth canal." (Statement II is TRUE)

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 1

✗ Incorrect

Verdict & Scientific Reason:

Statement I is factually correct regarding male genital duct anatomy.

⚠️

Student Fallacy (Why candidates pick this trap): Doubting whether the ejaculatory duct traverses the prostate to enter the urethra.

2 2

✓ 100% Correct

Verdict & Scientific Reason:

Both statements are verbatim excerpts from NCERT Human Reproduction.

💡

Why this is airtight: None; textbook verbatim precision.

3 3

✗ Incorrect

Verdict & Scientific Reason:

Both statements are indisputable anatomical truths.

⚠️

Student Fallacy (Why candidates pick this trap): Unwarranted skepticism.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Statement II is factually correct: cervical canal and vagina together constitute the birth canal.

⚠️

Student Fallacy (Why candidates pick this trap): Thinking the uterus itself is part of the birth canal proper.

⚠️

NTA Trap Alert: Uterus vs. Cervix in Birth Canal Composition

Students frequently assume the entire uterus plus vagina forms the birth canal. Anatomically, only the dilated cervical canal and vagina constitute the birth canal through which the fetus is expelled.

🛡️ How to avoid the -1 mark: Remember formula: Birth Canal = Cervical Canal + Vagina.

📖

Core NEET Syllabus Standard

NCERT Biology · Human Reproduction Standard Benchmark

Core Scientific Principle Tested:

"Vas deferens receives duct from seminal vesicle forming the ejaculatory duct; Cervical canal along with vagina forms the birth canal."

Syllabus Focus: The Male and Female Reproductive Systems

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

Ready to attempt under real exam pressure?

Test your speed and accuracy in the authentic 200-minute timed NTA simulator.

Launch NEET 2023 CBT Test →

← Previous (Q.165) All Zoology Questions Grid Next (Q.167) →

Spotted a mistake in this solution? Report an error (support@mycompetitiveexams.com)

⚖️ Legal & Fair Dealing Notice: Sourced from publicly released NEET 2023 question papers and NEET answer keys for private study, research, and non-commercial educational practice under Fair Dealing (Section 52(1)(a) of the Indian Copyright Act, 1957). Not affiliated with or endorsed by NTA or NMC.

NEET 2023 Zoology Question 166 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ Reproductive Duct System Dual Check

Step-by-Step Rigorous Workflow & Mathematical Proof

Evaluation of Statement I (Male Ejaculatory Duct Formation)

Evaluation of Statement II (Parturition Birth Canal)

Verbatim NCERT Reference

360° Option Elimination Engine Key Feature

NTA Trap Alert: Uterus vs. Cervix in Birth Canal Composition

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Human Reproduction

Male vs Female Accessory Ducts and Reproductive Anatomy

Endocrine Regulation of Ovulation (LH Surge) and Corpus Luteum (Progesterone)

Placental Hormones vs. Pituitary Hormones

Secondary Oocyte Envelopes (Zona Pellucida vs Corona Radiata)

Solve 4 NEET Questions a Day — One per Subject