Self Studies
Self Studies
Self Studies
Self Studies
Selfstudy
Selfstudy

Neural Control and Coordination Test - 67

Result Self Studies

Neural Control and Coordination Test - 67
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    A comb-like vascular structure pectin, used for nourishment and focussing in the eyes of
    Solution
    In the eye of the bird, a comb-like structure is present. It is called as pectin. It is soft and vascular. It is a rectangular plate. It projects into the vitreous humor from the blind spot. So, the correct answer is option B.
  • Question 2
    1 / -0
    Otoconium is found in
    Solution
    An otolith also called as statoconium or otoconium are endolymphatic infillings, made up of granules of calcium carbonate in the inner ear of vertebrates. Movement of otoliths, caused by a change in position of the animal, stimulates sensory hair cells, which convey the information to the brain.
  • Question 3
    1 / -0
    The retina of the eye acts as a
    Solution
    The back of the eye is lined by a layer called as the retina, which acts like the film inside a camera. The retina is a thin layer of nerve tissue, that contains photoreceptors. Photoreceptors convert light rays into electrical impulses, which are then sent through the optic nerve to the brain, where an image is perceived. As with a camera, if the film is bad in the eye (i.e., the retina is damaged or diseased), no matter how well the rest of the eye is functioning, a good picture is not possible.
  • Question 4
    1 / -0
    The normal eye which can sufficiently refract light rays from an object 20 ft. (6 mt.) away to focus clear object on retina is called as
    Solution
    A myopic eyed person focuses the light rays from a distant object in front of the retina, it can not focus distant objects sharply on the retina. Emmetropic eyes are characterized by sharp focusing of parallel light rays from distant objects on the retina when the ciliary muscle is completely relaxed to make the person see all the distant objects clearly. Hypermetropic eyes can not sufficiently bend the parallel light rays from the distant object to focus it on the retina in time.
  • Question 5
    1 / -0
    Which animal have porphyropsin instead of pigment rhodopsin in rods? 
    Solution
    In the rods of fresh water fishes, rhodopsin is replaced by the purple photolabile pigment porphyropsin. This participates in a retinal cycle identical in form with that of rhodopsin, but in which new carotenoids replace retinene and vitamin A.
  • Question 6
    1 / -0
    The mucous in the nose is secreted in response to odouriferous substance by
    Solution

    Bowman's glands are tubulo-alveolar serous secreting glands lying in the lamina propria of the mucosa. These glands deliver a proteinaceous secretion via ducts onto the surface of the mucosa. The role of the secretions are to trap and dissolve odouriferous substances for the bipolar neurons. Constant flow from the Bowman's glands allows old odours to be constantly washed away.

    So, the correct answer is 'Bowman's glands'

  • Question 7
    1 / -0
    Malleus is formed by modification of articular bone of lower vertebrates, while incus is modification of
    Solution
    In reptiles, the eardrum is connected to the inner ear via a single bone, the columella, while the upper and lower jaws contain several bones not found in mammals. Over the course of the evolution of mammals, one lower and one upper jaw bone (the articular and quadrate) lost their purpose in the jaw joint and were put to new use in the middle ear, connecting to the stapes and forming a chain of three bones (collectively called the ossicles), which transmit sounds more efficiently.
  • Question 8
    1 / -0
    The entry of light in a photographic camera is controlled by the shutter and iris diaphragm, comparable structure in human eye are
    Solution
    Iris is the part of the eye, which acts like the diaphragm of a camera, dilating and constricting the pupil to allow more or less light into the eye. The iris works like a shutter in a camera. It has the ability to enlarge and shrink, depending on how much light is entering the eye.
    The two eyelids act to protect the front of the eye and excessive light by their closure. The inner layer of the cornea is made up of transparent tissue, which allows light to pass. The pupil is the dark opening in the centre of the coloured iris, that controls how much light enters the eye. The ciliary body is a structure located behind the iris which produces aqueous fluid that fills the front part of the eye and thus maintains the eye pressure. It also allows focusing of the lens. 
    Thus, the correct answer is the option (B).
  • Question 9
    1 / -0
    The bone attached to the inner surface of the eardrum is called
    Solution
    • The malleus is a hammer-shaped small bone or ossicle of the middle ear, which connects with the incus and is attached to the inner surface of the eardrum. 
    • It transmits the sound vibrations from the eardrum to the incus.
  • Question 10
    1 / -0
    Ora serrata is
    Solution
    The ora Serrata is a toothlike junction between the peripheral retina and the pars plana and is composed of forward extensions of the retina and backward extensions of the ciliary body. So, the correct answer is option A.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now