Question

Briefly explain cell organelles Name of any five muscles Branches of Aarta Salivary glands Pleura

Answer 1

Answer:

1. Cell organelles are sub-units within a cell ; each has different functions to carry out chemical reactions in the cell. Example , cell nucleus , endoplasmic reticulum , mitochondria , etc

2. -Abdominal muscles

   - Obliques

   - Erector spinae

  - Pectoral muscles

  - Deltoids

3. The aorta is divided into three parts :

The ascending aorta -  the left and right coronary arteries.

The arch of the aorta - the brachiocephalic artery, which divides itself

                                          into the right common carotid artery and the

                                         left  subclavian artery  .

                                           

The descending aorta - it is divided into two portions , the thoracic and

                                        abdominal , in correspondence with the two great

                                         cavities of the trunk in which it sits. Within the  

                                         abdomen , the descending aorta branches into the

                                         two common iliac arteries that provide blood to

                                           the pelvis , and eventually to the legs.

4. It is a condition ( a type of tumor ) which causes disruptions in the

   functioning of the lungs during breathing.  

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Explanation: