Identification of L.S. of the Human Brain: Bio-Zoology Practical Experiment

Identification of L.S of the human brain - Bio-Zoology Laboratory Practical Experiment

Aim:

To observe and draw a labelled sketch of L.S of human brain and indicate the different regions of the brain

Materials Required

Model showing the L.S of human brain

Identification:

The given model is identified as L.S. of human brain

1. The brain is enclosed in the cranial cavity

2. It is the controlling centre of all the body activities.

3. It is covered by three connective tissue membrane or meninges: Duramater Arachnoid membrane and Piamater

4. The human brain is divided into three parts namely forebrain, midbrain and hindbrain

Identification of Blood Cells: Bio-Zoology Practical Experiment

Identification of Blood Cells - Bio-Zoology Laboratory Practical Experiment

Aim:

Identification of blood cells (Red blood cells and white blood cells). To draw a neat labelled diagram and write a note on the blood cells identified.

Materials Required

Permanent prepared slides of blood cells.

Identification:

Red blood cells

The given slide is identified as Red blood cells

1. They are biconcave and disc shaped.
2. They are also known as erythrocytes
3. Mature mammalian RBC’s do not have nucleus.
4. Haemoglobin is a respiratory pigment which gives red colour.
5. It transports oxygen from lungs to tissues and carbon- dioxide from tissues to lungs

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White blood cells

The given slide is identified as White blood cells

1. WBC’s are colourless and they have nucleus.
2. They are also known as Leucocytes
3. They show amoeboid movements.
4. They fight against germs and other foreign bodies and thus protect the body from microbial infections and diseases.
5. There are five different types of WBC named as Neutrophils, Eosinophils, Basophils, Lymphocytes and Monocytes