Observe different actions performed by your classmate for a period of 45 minutes. Out of those actions which are controlled by voluntary and involuntary pathways.

Observe different actions performed by your classmate for a period of 45 minutes. Out of these actions which are contolled by voluntary and involuntary pathways?

Which part of the brain controls the involuntary action of respiration ?

Read and fill the blanks in flow chart and answer the following question? In which parts we observed involuntary actions/ movements?

Fill in the blanks with suitable words given below. Fluctuations of hormone ……………(i)……………levels results in sensation of hunger and motivation of consuming food. When you feel your stomach is full and there is no need of food any more. Another hormone ............(ii).........that gets secreted suppresses hunger . We take food into the mouth it has to be chewed thoroughly. For this purpose the...........(iii)......... muscles help in chewing actions, while the ...............(iv).......... muscles of the jaw moves the jaw up, down ,forward and backward during food mastication. The .............(v)......... nerve controls the muscles of the jaw. Under the action of ............(vi)...........nervous system Saliva is released by the salivary glands moistens the food to make chewing and swallowing easier. The salivary ............(vii)............in the saliva breaks down the starch into sugars. As a result of chewing the food is transported into the esophagus by the action of swallowing which is collimated by the swallowing center in the .......(viii)......... and the ............(ix)...........The tongue which is gustatory recognizes the taste and...........(x)............nerve plays an important role in sensation of taste. Choose the right ones. i) Leptin , ghrelin , gastrin , secretin. ii) ghrelin , Leptin , secretin , gastrin. iii) deep muscles , surface muscles , circus lard muscles, striated muscles. iv) surface muscles , deep muscles , neck muscles , long muscles. v) fifth cranial nerve , second cranial nerve , fifth facial nerve , spinal nerve. vi) central nervous system , peripheral nervous system , autonomous nervous system vii) lipase , sucrose , galactase , amylase. viii) medulla oblongata , cerebrum , 8th spinal nerve , cranial nerve, 7th cranial nerve. ix) Pons virile , brain stem medulla oblongata , mid brain . x) 6th cranial nerve , 5th cranial nerve, 10th cranial nerve , optic nerve.

Fill in the blanks with suitable words given below. Fluctuation s of hormone (i)_____________ levels results in sensation of hunger and motivation of consuming food. When you feel your stomach is full and there is no need of food any more. Another hormone (ii)_____________ that gets secreted suppresses hunger. When we take food into the mouth it has to be chewed thoroughly. For this purpose the (iii)_____________ muscles help in chewing actions, while the (iv)_____________ muscles of the jaw moves the jaw up,down ,forward and backward during food mastication. The (v)_____________ nerve controls the muscles of the jaw. . Under the action of (vi)_____________ nervous system Saliva is released by the salivary glands moistens the food to make chewing and swallowing easier. The salivary (vii)_____________ in the saliva breaks down the starch into sugars. As a result of chewing the food is transported into the oesophagus by the action of swallowing which is coordinated by the swallowing centre in the (viii)_____________ and the (ix)_____________. The tongue which is gustatory recognizes the taste and (x)_____________ nerve plays an important role in sensation of taste. Choose the right ones. 1) leptin, grehlin gastrin secretin. 2) ghrelin leptin secretin gastrin. 3) deep muscles ,surface muscles ,circular muscles, striated muscles. 4) surface muscles, deep muscles, neck muscles, long muscle. 5) fifth cranial nerve ,second cranial nerve,fifth facial nerve, spinal nerve. 6) central nervous system, peripheral nervous system autonomous nervous system. 7) lipase, sucrase, galactase,amylase. 8) medulla oblongata, cerebrum , 8th spinal nerve,cranial nerve.7th cranial nerve. 9) Pons varoli, brain stem ,medulla oblongata, mid brain. 10) 6^(th) cranial nerve, 5^(th) cranial nerve, 10^(th) cranial nerve, optic nerve.

It is tempting to think that all possible transitions are permissible, and that an atomic spectrum arises from the transition of the electron from any initial orbital to any other orbital. However, this is not so, because a photon has an intrinsic spin angular momentum of sqrt2 (h)/(2pi) corresponding to S = 1 although it has no charge and no rest mass. On the other hand, an electron has got two types of angular momentum : Orbital angular momentum, L=sqrt(l(l+1))h/(2pi) and spin angular momentum, arising from orbital motion and spin motion of electron respectively. The change in angular momentum of the electron during any electronic transition must compensate for the angular momentum carries away by the photon. to satisfy this condition the difference between the azimuthal quantum numbers of the orbital within which transition takes place must differ by one. Thus, an electron in a d-orbital (1 = 2) cannot make a transition into an s = orbital (I = 0) because the photon cannot carry away enough angular momentum. An electron as is well known, possess four quantum numbers n, I, m and s. Out of these four I determines the magnitude of orbital angular momentum (mentioned above) while (2n m determines its z-components as m((h)/(2pi)) the permissible values of only integers right from -1 to + l. While those for I are also integers starting from 0 to (n − 1). The values of I denotes the sub shell. For I = 0, 1, 2, 3, 4,..... the sub-shells are denoted by the symbols s, p, d, f, g, .... respectively The orbital angular momentum of an electron in p-orbital makes an angle of 45^@ from Z-axis. Hence Z-component of orbital angular momentum of election is :