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Biology Test

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What is the study of the joints called?

  1. Myology

  2. Syndesmology

  3. Angiology

  4. Splanchnology


Correct Option: B
Explanation:

Syndesmology is defined as the study of the structure, function and diseases of the joints present in the human body.

Mr. Kapadia's son has a humpback. This condition is _______.

  1. orthotics

  2. scoliosis

  3. kyphosis

  4. lordosis


Correct Option: C
Explanation:

Kyphosis is defined as a forward curvature of the vertebrae in the upper back area giving the child an abnormally rounded or humpback.

The opposition and extension movement of the thumb is regulated by_________.

  1. the abductor hallucis

  2. the abductor pollicis brevis

  3. the adductor brevis

  4. the adductor hallucis


Correct Option: B
Explanation:

This muscle is present in the hand and functions as an abductor of the thumb. It regulates the opposition and extension of the thumb.

Which of the following muscle contractions shows no movement?

  1. Concentric contraction

  2. Eccentric contraction

  3. Isometric contraction

  4. Isotonic contraction


Correct Option: C
Explanation:

Here the length of muscle remains the same, e.g. holding an object up without moving it. The muscular force approximately matches the load and thus no movement results.

Who is cell authoritative for bone remodeling?

  1. Osteoblast

  2. Osteocyte

  3. Osteoderm

  4. Osteon


Correct Option: A
Explanation:

Osteoblast is a large cell authoritative for the formation and mineralization of bone during both initial bone formation and bone remodeling.

Which of the following eye movements will take place if a boy moves his eyes both in left and right directions?

  1. Conjugate eye movements

  2. Vergence eye movements

  3. Saccadic eye movements

  4. Smooth pursuit movements


Correct Option: A
Explanation:

Conjugate eye movements are those that preserve the angular relationship between the right and left eyes. For example, when you move both eyes left and then right, a conjugate movement is made. Up and down movements and combinations of vertical and lateral movements also fall into the conjugate category.

Which of the following muscles contracts and revolves the eyeball outward?

  1. Lateral rectus

  2. Medial rectus

  3. Inferior rectus muscle

  4. Superior rectus muscle


Correct Option: A
Explanation:

Lateral rectus is the ocular muscle, which contracts and revolves the eyeball outward. It brings the pupil away from the midline of the body.

Which of the following muscles causes wrinkling of the skin of chin?

  1. Risorius

  2. Depressor anguli oris

  3. Depressor labii inferiois

  4. Mentalis


Correct Option: D
Explanation:

It is a paired muscle lying at the lower end of the chin. It causes protrusion of the lower lip and elevates the skin of the chin. As the lower lip is raised, it results in elevation and wrinkling of the skin of chin.

Which of the following muscles helps in non-verbal communication?

  1. The levator labii superioris muscle

  2. The levator labii superioris alaeque nasi

  3. The levator anguli oris

  4. The zygomaticus


Correct Option: C
Explanation:

Levator anguli oris is a deeply placed oral muscle originating from the maxilla that elevates the corner of the mouth. It aids in non-verbal communication as it helps the face in forming a well known expression, the smile.

Which bone is the most frequently broken bone in the body?

  1. Hyoid bone

  2. Scapula

  3. Clavicle

  4. Femur


Correct Option: C
Explanation:

This bone lies between the rib cage and the shoulder blade in the body connecting the arm to the body. It is the most commonly broken bone in the body probably due to its location just beneath the skin and the forces it is subjected to in connecting the arm to the body.

--------------------------- is known as the kissing muscles.

  1. Modiolus

  2. Platysma

  3. Orbicularis Oris Muscle

  4. Buccinator


Correct Option: C
Explanation:

This muscle surrounds the whole mouth. It is situated between the skin and the mucous membranes of the lips, stretching upward to the nose and down to the part between both the lips and chin. It is also called the kissing muscle of the body.

Which of the following is not a wrist bone?

  1. Scaphoid bone

  2. Lunate bone

  3. Hamate bone

  4. Ethmoid bone


Correct Option: D
Explanation:

This bone is not present in the wrist but is in the skull separating the nasal cavity from the brain.

Clavicle and the vertebrae are the examples of___________.

  1. typical long bones

  2. miniature long bones

  3. modified long bones

  4. short bones


Correct Option: C
Explanation:

These bones frequently have modified shaft or ends and lacks medullary cavity. The most prominent examples are clavicle and body of vertebrae.

The bones found only in developing embryo are

  1. fibrous

  2. lamellar

  3. spongy

  4. compact


Correct Option: A
Explanation:

These bones are characterised by more fibers in them. In humans, they are found only in developing embryo.

The mandible, occipital, temporal, and sphenoid bones are the examples of__________.

  1. membranous bones

  2. cartilaginous bones

  3. membro-cartilaginous bones

  4. sesamoid bones


Correct Option: C
Explanation:

These bones ossify partly from cartilage and partly from mesenchymal concentrations. The most prominent examples are clavicle, mandible, occipital, temporal and sphenoid, etc.

Amniocentesis is done to determine whether or not the developing fetus has _________.

  1. diabetes

  2. down syndrome

  3. chances of being obese

  4. cancer


Correct Option: B
Explanation:

Amniocentesis is done after the 15th week of pregnancy to see if their developing baby has a chromosome disorder such as Down's syndrome.

Which of the following bones is associated with severe lameness in humans and horses?

  1. Calcaneus

  2. Navicular bone

  3. Talus

  4. Cuboid


Correct Option: B
Explanation:

It is a small bone found in the human foot as well as a horse's hoof. It can cause severe lameness in both humans as well as horses.

Which of the following techniques has the lowest risk for the developing embryo?

  1. Amniocentesis

  2. Chorionic villi sampling

  3. Alpha-feto protein screening

  4. An ultrasound scan


Correct Option: C
Explanation:

Since only a sample of the blood of mother is drawn in this procedure, there is no risk to her unborn child.

Which of the following procedures usually involves in injecting a small flexible plastic tube through the vagina into the uterus?

  1. Amniocentesis

  2. Chorionic villi sampling

  3. Alpha-feto protein screening

  4. A glucose tolerance test


Correct Option: B
Explanation:

This method is used to draw out a sample of chorion tissue for cell culturing. As in amniocentesis, ultrasound monitoring helps to prevent damage to the unborn child during the sampling procedure.

Who created phallometry?

  1. Stephen Christmas

  2. William Cowper

  3. Richard L. Heschl

  4. Kurt Freund


Correct Option: D
Explanation:

He was a Czech sexologist, who is famed for creating phallometry, i.e. the complete measurement of sexual arousal in males.

Ageing is the by-product of metabolism. This statement is the _________.

  1. living theory

  2. immunological theory

  3. free radicals theory

  4. cross linking theory


Correct Option: A
Explanation:

As per this theory, ageing is the by-product of metabolism. Thus, greater is the organism's rate of metabolism, shorter is its life span and vice versa.

In plants, which hormone stimulates the production of protease inhibitors?

  1. Brassinosteroids

  2. Salicylic acid

  3. Jasmonates

  4. Systemin


Correct Option: D
Explanation:

It is a tiny polypeptide plant hormone functioning as a long-distance alarm to activate chemical defenses against herbivores. It stimulates the production of protein defense compound called protease inhibitors.

Which hormone is found in the smoke of a group of burning plants?

  1. Polaris

  2. Phytosulfokine

  3. Karrikins

  4. Strigolactones


Correct Option: C
Explanation:

These hormones are present in the fumes of burning plants material and have potential to stimulate the germination of seeds.

Damage to mechanisms synthesise proteins resulting in senesence. This statement is the

  1. theory of error catastrophe

  2. somatic mutation theory

  3. programmed senescence theory

  4. wear and tear theory


Correct Option: A
Explanation:

As per this theory, damage to mechanisms synthesise proteins resulting in faulty proteins, which assemble to a level that causes catastrophic damage to cells, tissues, and organs.

The nodular bones inserted in tendons and joint capsules are

  1. flat

  2. irregular

  3. pneumatic

  4. sesamoid


Correct Option: D
Explanation:

These bones are in the form of nodules inserted in tendons and joint capsules. The most common examples are patella, pisiform and fabella.

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