31. How many types of joints are present in our body?
[A] 2
[B] 3
[C] 5
[D] 6
Show Answer
Correct Answer: B [3]
Notes:
The human body has three main types of joints.
1. synarthrosis
2. amphiarthrosis
3. diarthrosis
32. What is the diameter of thick filaments?
[A] 10nm
[B] 16mm
[C] 12nm
[D] 16nm
Show Answer
Correct Answer: B [16mm]
Notes:
The diameter of thick is 16mm. The thick filament is made up of a biphasic, elongated protein called myosin.
33. It filters your blood, and the tube returns essential substances to your blood and removes waste, called __
[A] Secretion
[B] Tubular Reabsorption
[C] Glomerular Filtration
[D] None of these
Show Answer
Correct Answer: C [Glomerular Filtration]
Notes:
Glomerular Filtration filters your blood, and the tube returns essential substances to your blood and removes waste.
34. What is another name for the bulbourethral gland?
[A] Meibomian gland
[B] Prostate gland
[C] Perineal gland
[D] Cowper’s gland
Show Answer
Correct Answer: D [Cowper’s gland]
Notes:
Cowper’s gland is another name for the bulbourethral gland. Cowper’s glands are pea-sized glands. They are located below the prostate gland in the male reproductive system.
35. Which of the following virus is also known as the common cold?
[A] Variola virus
[B] Rhinovirus
[C] Varicella zoster Virus
[D] Myxovirus
Show Answer
Correct Answer: B [Rhinovirus]
Notes:
Rhinovirus is also known as the common cold. This is also called RNA Virus.
36. Which of the following is not a connective tissue?
[A] Cardiac Muscle
[B] Areolar Tissue
[C] Compact Bone
[D] Adipose Tissue
Show Answer
Correct Answer: A [Cardiac Muscle]
Notes:
Connective tissue is a group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support. Bone, ligaments, tendons, cartilage, and adipose (fat) tissue are examples of connective tissue. Cardiac muscle is an example of muscle tissue. It is so named because it is found in the heart.
37. Osteocytes are found in ____:
[A] Blood
[B] Bone
[C] Lymph
[D] Cartilage
Show Answer
Correct Answer: B [Bone]
Notes:
An osteocyte, a star shaped cell, is the most commonly found cell in mature bone, and can live as long as the organism itself. Osteocytes are networked to each other via long cytoplasmic extensions that occupy tiny canals called canaliculi, which are used for exchange of nutrients and waste through gap junctions. The space that an osteocyte occupies is called a lacuna.
38. The largest invertebrate is a/an ____:
[A] Sponge
[B] Mollusc
[C] Echinoderm
[D] Arthropod
Show Answer
Correct Answer: B [Mollusc]
Notes:
The largest invertebrate is Mollusc. With over 80,000 species, molluscs form the second largest phylum of animals on Earth and range from tiny snails to giant squid and octopuses.
39. In how many parts is the human brain divided?
[A] 2
[B] 3
[C] 4
[D] 5
Show Answer
Correct Answer: B [3]
Notes:
The human brain is divided into three parts : The brainstem which has the pons, the midbrain, and the medulla oblongata. The cerebellum which forms the hindbrain along with the brainstem and is located below the cerebrum. The cerebrum which is the largest section of the brain, is divided into two hemispheres (the left and the right) each of which has four lobes: the frontal, the temporal, the parietal, and the occipital.
40. Syrinx is the voice box in ____:
[A] Birds
[B] Reptiles
[C] Mammals
[D] Amphibians
Show Answer
Correct Answer: A [Birds]
Notes:
Syrinx is the name for the vocal organ of birds. Located at the base of a bird’s trachea, it produces sounds without the vocal cords of mammals. The sound is produced by vibrations of some or all of the membrana tympaniformis (the walls of the syrinx) and the pessulus caused by air flowing through the syrinx.
