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Recent questions in Human Physiology
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Human Physiology
During contraction : 1. Actin filaments are pulled towards the centre of ‘A’ band. The ‘Z’ line attached to these actins are also pulled inwards thereby causing a shortening of the sarcomere. 2. ‘I’ bands get reduced, whereas the ‘A’ bands retain the length Regarding 1 and 2 : What are A,B and C in order?
aipmt
ch20
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Which of the following is important for muscle contraction and nerve transmission ?
aipmt
ch20
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The HMM component projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as ___________ (D) . The ___________ (C) is an active ATPase enzyme and has binding sites for _______ (B) and _________ (A).
aipmt
ch20
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
Structure of Contractile Proteins (Myosin) : Many monomeric proteins called _____________ (E) constitute one thick filament. Each ______________ (E) has two important parts, a ____________ (C) with a __________ and ________, the former being called the ________________ and the latter, the ________________ .
aipmt
ch20
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Structure of Contractile Proteins (Actin) : Each actin filament is made of two ________ (C) helically wound to each other. Each ________ (C) is a polymer of monomeric ____________. Two filaments of another protein, ___________ (B) also run close to the ____________ (C) throughout its length. In the resting state a subunit of ___________ (A) masks the active binding sites for myosin on the actin filaments
aipmt
ch20
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The portion of the muscle fibre between two successive ___________ (A) is considered as the functional unit of contraction and is called a ____________ (E) . In a resting state, the edges of thin filaments on either side of the thick filaments partially overlap the free ends of the thick filaments leaving the central part of the thick filaments. This central part of thick filament, not overlapped by thin filaments is called the __________ (D) .
aipmt
ch20
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
2
answers
In the centre of each ___________ (C) is an elastic fibre called ________ (A) which bisects it. The thin filaments are firmly attached to the _________ (A). The thick filaments in the ________ (B) are also held together in the middle of this band by a thin fibrous membrane called ___________ . The ______ (B) and _______ (C) are arranged alternately throughout the length of the myofibrils.
aipmt
ch20
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Each myofibril has alternate dark and light bands on it. The light bands contain ______ and is called ___________________ (C), whereas the dark band called ________________________ (B) contains _______________ .
aipmt
ch20
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Each organised skeletal muscle in our body is made of a number of ________________ (A) held together by a common collagenous connective tissue layer called _______________ . Each ________________ (A) contains a number of _________________ (B). Each is _______________ (B) lined by the plasma membrane called ________________ (C).
aipmt
ch20
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Hypothalamic hormones originating in the ____________________ (A), pass through axons and are released from their nerve endings. Hypothalamic hormone reach the pituitary gland through a _____________________ (B) and regulate the functions of the ____________________ (D). The __________________ (C) is under the direct neural regulation of the ________________ (E).
aipmt
ch22
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Hormones which interact with ___________________ mostly regulate __________________ by the interaction of _______________________ (C) with the ___________________ (D).
aipmt
ch22
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Hormones which interact with _________________ (A) normally do not enter the target cell, but _______________________ (B) which in turn regulate cellular metabolism.
aipmt
ch22
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The _______________ (C) is a structure located on the ________________ (D)which contains ________________ that act as auditory receptors. A large number of processes called _________________ are projected from the apical part of each hair cell. Above the rows of the hair cells is a thin elastic membrane called _________________ (F).
aipmt
ch21
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
The membranes constituting cochlea, the ______________ (A) and ____________ (D), divide the surounding perilymph filled bony labyrinth into _____________________ (G) and _____________________ (E). The space within cochlea called __________________ (B) is filled with endolymph.
aipmt
ch21
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
The ear ossicles increase the efficiency of transmission of sound waves to the inner ear. An __________________ (G) connects the middle ear cavity with the pharynx. The _____________________ helps in equalising the pressures on either sides of the ear drum. The coiled portion of the labyrinth is called _____________ (F).
aipmt
ch21
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The middle ear contains three ossicles called ________ (A), ________ (B) and _________ (C) which are attached to one another in a chain-like fashion. The ____________ (A) is attached to the _____________ (H) and the is attached to the ______________ (D) of the cochlea.
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The space between the cornea and the lens is called the ________________________ (A) and contains a thin watery fluid called ____________________ . The space between the lens and the retina is called the __________________ (K) and is filled with a transparent gel called _____________________ .
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The _________________ (G) leave the eye and the retinal blood vessels enter it at a point medial to and slightly above the posterior pole of the eye ball. Photoreceptor cells are not present in that region and hence it is called the ________________ (H) . At the posterior pole of the eye lateral to the _____________________ (H) , there is a yellowish pigmented spot called _____________________ with a central pit called the _______________ (I) .
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The __________________ (B) itself continues forward to form a pigmented and opaque structure called the ________________ (D) which is the visible coloured portion of the eye. The eye ball contains a transparent crystalline ______________ (L) which is held in place by ligaments attached to the __________________ (B) . The inner layer is the _________________ (J).
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The external layer (among three layers of eye) is composed of a dense connective tissue and is called the ___________ (E) . The anterior portion of this layer is called the ___________ (C) . The middle layer, ____________________ (F) , contains many blood vessels and looks bluish in colour. The _____________ (F) layer is thin over the posterior two-thirds of the eye ball, but it becomes thick in the anterior part to form the ________________ (B).
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the structures marked as G, H, I and J in order in the picture:
neet
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The _______________ (C) receives signal from a ________________ (B) and transmits the impulse via a ________________ (D) into the CNS (at the level of spinal cord). The __________________ (E) then carries signals from CNS to the _________________ (F). The _________________ (A) and ________________ (K) thus forms a reflex arc as shown below in the ________________ reflex.
aipmt
ch21
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
1. The left and right cerebral hemispheres are connected by a tract of nerve fibres called ______________ (K). 2. The ___________(F) comprises ________ (G), __________ (M) and ___________ (H).
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
A canal called the _________________(L) passess through the midbrain. ___________ (E) and _____________ (F) form the ________________ (I) .
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
The ____________ (E) is located between the __________ (B) /__________ ( C) of the ___________(D) and _____________ (G) of the __________ (F) .
aipmt
ch21
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
The ___________ (D) consists of _________(A), ____________ (B) and ____________ ( C) . _______________ forms the major part of the human brain.
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Pre synaptic neurons in response to stimuli release their neurotransmitters in the ____________ . The released neurotransmitters bind to their specific ______________ . What is (A)?
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
At a _________________ (F) , the ________________ are separated by a fluid-filled space called ___________________ .
aipmt
ch21
easy
class11
human-physiology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the structure and fill in the blanks) The distal end of axon is branched and each branch terminates as a bulb-like structure called ____________________ .
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
A neuron is a microscopic structure composed of three major parts - ____________ , __________ and ___________ . The cell body contains cytoplasm with typical cell organelles and certain called __________________ . The _______________ is a long fibre, the distal end of which is branched.( Identify the structure and fill in the blanks)
aipmt
ch21
easy
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the enzyme X ? Where it is present? Every 100 ml of deoxygenated blood delivers approximately ___ ml of CO2 to the alveoli
aipmt
ch17
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
(i) What curve is this? (ii) How is this curve plotted ? (iii) What are the uses of this curve ?
aipmt
ch17
difficult
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the structures marked as A, B, C and D in order - also specify what A, B, C constitute in the picture (choose the appropriate statement) :
aipmt
ch17
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
In alveolar and blood & blood and tissue gas exchanges - What are the values of $(X_1, Y_1) ; (X_2, Y_2) ; (X_3, Y_3)$ in the picture marked?
neet
ch17
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Regarding Expiration - choose the incorrect statement :
aipmt
ch17
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Regarding Inspiration - choose the incorrect statement :
aipmt
ch17
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the structure marked as F, G, H, I and also state about the formation of the structure marked as H and mention the alphabet of the structure guarded by the sphincter of Oddi in order in the picture :
aipmt
ch16
difficult
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the structure marked as A, B, C, D, E and also state about the formation of the structure marked as D in order in the picture :
aipmt
ch16
difficult
class11
biology
zoology
human-physiology
asked
Mar 26, 2014
by
pady_1
1
answer
Identify the teeth marked as A, B, C, D their count in adult human and also the structure marked as E in order in the picture :
neet
ch16
medium
class11
human-physiology
biology
zoology
asked
Mar 26, 2014
by
pady_1
1
answer
Regarding transverse section of gut - Identify the structures marked as B,C in order in the picture and they constitute G-Identify G
neet
ch16
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
Regarding transverse section of gut - Identify the structures marked as A, D, E, F in order in the picture :
neet
ch16
medium
class11
human-physiology
biology
asked
Mar 26, 2014
by
pady_1
1
answer
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