MCQ
Which is true for $CO_2$ concentration
- ✓More in alveolar air than in expired air
- BMore in expired air than in alveolar air
- CMore in inspired air than in expired air
- DMore in inspired air than in alveolar air
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Statement $I$: The cerebral hemispheres are connected by nerve tract known as corpus callosum.
Statement $II$: The brain stem consists of the medulla oblongata, pons and cerebrum.
In the light of the above statements, choose the most appropriate answer from the options given below:
| Column $- I$ | Column $- II$ |
| $(a)$ Floating Ribs | $(i)$ Located between second and seventh ribs |
| $(b)$ Acromion | $(ii)$ Head of the Humerus |
| $(c)$ Scapula | $(iii)$ Clavicle |
| $(d)$ Glenold cavity | $(iv)$ Do not connect with the sternum |
$(a)\quad(b) \quad(c) \quad(d)$
Here $A$ and $B$ refer to