Biology

Animal Tissue and Anatomy

1,349 Questions

Test your knowledge of animal tissues and anatomical structures with these practice questions. The set covers human organs, reproductive systems, and sensory receptors. These fundamental biology topics frequently appear in medical and competitive examinations.

Sensory receptorsReproductive organsBody structure frameworkEar drum pressureExcretory system

Animal Tissue and Anatomy Questions

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Larynx open into pharynx by

  1. Gullet

  2. Glottis

  3. Epiglottis

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The lowest part of pharynx is the laryngopharynx. It has two apertures, the anterior slit is 'glottis', through which it opens into the larynx and the posterior slit is 'gullet', which leads to the oesophagus.
  • Thus, larynx opens into the pharynx by glottis. The glottis bear a leaf-like a cartilaginous flap, called the 'epiglottis'. Epiglottis cover the glottis during swallowing, to prevent the entry of food into it.
    Hence, the correct answer is B.
Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Nasal and oral cavities in human is separated by

  1. Diaphragm

  2. Palate

  3. Trachea

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The palate is the roof the mouth in humans and other mammals. It separates the oral cavity from the nasal cavity. A similar structure is found in crocodilians, but, in most other tetrapods, the oral and nasal cavities are not truly separate. The palate is divided into two parts, the anterior bony hard palate, and the posterior fleshy soft palate (or velum). The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continuously, and most of the time, involuntarily. The trachea, colloquially called windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air. Thus, option B is correct.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Nasal chambers and buccal cavity are separated by

  1. By uvula

  2. By palate

  3. By palatine

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • The oral and nasal cavities lie near the body midline, inferior and medial to the orbital cavities, anterior to the pharynx and medial to the infratemporal fossa.
  • They are separated from one another by the palate. 
  • Each cavity has an entrance and an exit. Hence, Nasal chambers and buccal cavity are separated by the palate.
So, the correct answer is 'By palate'.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

In human being, sphincter of Oddi is situated in

  1. Common bile duct

  2. Ampulla of vater

  3. Main pancreatic duct

  4. Common hepatic duct
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Various smooth muscle sphincters regulate the flow of bile and pancreatic juice through the ampulla: the sphincter of the pancreatic duct, the sphincter of the bile duct, and the hepatopancreatic sphincter (Sphincter of Oddi).The sphincter of Oddi controls the introduction of bile and pancreatic secretions into the duodenum, as well as preventing the entry of duodenal contents into the ampulla.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

'Crypts of Lieberkuhn' are found in

  1. Gall bladder

  2. Liver

  3. Pancreas

  4. Intestinal glands
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Folds of small intestine are conical shaped villi.  Small slit like space is found at the base of villi. These spaces are called crypts of Lieberkuhn. The crypts of Leiberkuhn secrete succus entericus or intestinal juice. The succus entericus mainly contains water (99%) and various digestive enzymes (1%). 

Multiple choice evs more about organ system introduction to excretory system structures and functions related to the excretory system introduction to excretion

Ureters act as Wolffian or urinogenital duct in 

  1. Both male and female frog

  2. Male frog

  3. Human male

  4. Human female
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wolffian duct is also called as archinephric duct, is a pair of tubes that carry urine from primitive or embryonic kidneys to the exterior or to a primitive bladder. 

In amphibians, the reproductive system encroaches on the Wolffian duct. In some species the duct carries both urine and sperm, but most amphibians develop a separate tube to carry urine from the kidney.
Therefore, the correct answer is option B.

Multiple choice evs more about organ system introduction to excretory system structures and functions related to the excretory system introduction to excretion

In the urinogenital organs of rabbit, which one of following part is present in male but not in female?

  1. Urethra

  2. Fallopian tube

  3. Vagina

  4. Vas deferens
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ductus deferens, also known as the vas deferens, is a tiny muscular tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory duct. 

Multiple choice evs more about organ system introduction to excretory system structures and functions related to the excretory system introduction to excretion

Ciliated funnels found on the ventral side of kidney in Frog are

  1. Ostia

  2. Nephrostomes

  3. Bidders organs

  4. Corpora adiposa
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The excretory system of frog consists of a pair of kidney, ureters, urinary bladder and cloaca. On the ventral surface of the kidney in the frog, there are ciliated funnels present called as nephrostome. The nephrostome is internally lined with cilia, its function is to push water, metabolic wastes and other substances into metanephridium (Kidney).

So, the correct answer is 'Nephrostomes'.

Multiple choice biology the reproductive system menstruation male reproductive system in humans male reproductive system reproduction in plants and animals

The head of the epididymis at the head of the testis is called ____________.

  1. Cauda epididymis

  2. Vas deferens

  3. Caput epididymis

  4. Gubernaculum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The epididymis is a mass of long narrow closely coiled tubule which lies along the inner side of each testis. Coiling forms three parts - 

Upper - caput epididymis or head, 
Middle - corpus epididymis or body, and 
Lower - cauda epididymis or tail.

Multiple choice biology the reproductive system menstruation male reproductive system in humans male reproductive system reproduction in plants and animals

The testes are located within the

  1. Penis

  2. Scrotum

  3. Ureter

  4. Urinary bladder
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The scrotum is a sack of skin that hangs from the body at the front of the pelvis, between the legs. It sits next to the upper thighs, just below the penis. The scrotum contains the testicles, and its function is to maintain the temperature of testicles lower than the body temperature, so as to facilitate spermatogenesis.
So, the correct option is 'Scrotum'
Multiple choice biology the reproductive system menstruation male reproductive system in humans male reproductive system reproduction in plants and animals

How many structures are found in the abdominal cavity of males among the following structures? Epididymis, Rete testis, Ampulla of vas deferens, Fallopian tube, Prostate gland, Seminal vesicle, Round ligament, Ureter, Membranous urethra

  1. $2$
  2. $3$
  3. $4$
  4. $5$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
In males, the testes are extra-abdominal in position. The structure within the testes are not abdominal. So the rest structures are present in the abdominal cavity of the male like vas deferens, prostate gland, seminal vesicle, and membranous urethra.
So the correct answer is '4'.
Multiple choice biology the reproductive system menstruation male reproductive system in humans male reproductive system reproduction in plants and animals

Which among the following part of male reproductive system is not considered intratesticular genital duct ?

  1. Tubuli recti

  2. Rete testis

  3. Ductuli efferentes

  4. Epididymis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The intratesticular genital duct includes the parts like Tubuli recti, Rete testes and Ductili efferentes. 

Epididymis is a long tube connects the testicles to the vas deferens. It is formed from the ductili efferentes, but it is not a part of the intratesticular genital duct.

Multiple choice biology the reproductive system menstruation male reproductive system in humans male reproductive system reproduction in plants and animals

Which one is primary sex organ?

  1. Penis

  2. Scrotum

  3. Testis

  4. Prostrate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The reproductive organs in each gender include a primary sex organ and several secondary sex organs. 
  • The primary sex organ is the one that produces the gametes of that sex i.e. the sperm or the ova. 
  • So, in the male, the primary sex organ is testis. In the female, the primary sex organ is the ovary.