integumentary system

Lab1 : Title: integumentary system

Objective

·         To observe anatomically and identify the histology structure of the skin

·         To differentiate the thick and thin layer of skin

·         To observe physiology function of integumentary system

Theory

The skin often considered as the an organ sytem because of its extent and complexity,it does much more than cover the body exterior,arthitecturally  the skin is a wonder .it is tough yet pliable characteristic that enable it to withstand constant from outside agent ,it has several fun tion  but most concernwith protection,it is made up  two layer,the dermis and eperdemis,it has thick and thin layer of skin to allow heat transmission and sweating.

Material :

·         Ear   thermometer

·         Forehead thermometer

·         Immersion oil

·         Stop watch

·         H&E mounted thick and thin skin slide

·         Microscope

·         Skin model

·         Color pensil

·         Drawing material

Method :

1.       examined the skin model and draw the observation

2.      The thick layer of the skin slide are examined using the 10x,40x,and 100x under the light microscope

3.      Labelled the drawing

4.      The thin layer are observed by  the same way of the thick skin

5.      Measure the body temperature usng the ear thermometer and forehead thermometer

6.      For 3 minutes running and record the the body temperature

7.      The step are repeated for 15 minutes

8.      The observation are recorded

Discussion

From this experiment we have been given a model of the human skin model and the slide of the thick and thin human skin.there we observe the morphology of the skin and identify the layer of the skin we also have been recorded the observation into the drawing with the using of the microscope magnification 40X,other than the check the body temperature and the temperature of the body after certain activity are doing.like running and jogging.this show the human system of the body when carried of  the body homeostasis,as the largest organ in the human body the skin have been doing many function like build the vitamin D, remove heat and release  heat from the body,and other function.the chages that occur on the skin making the skin have been changing depend on the type of function that it has been made.there are changes that may happen on the skin and the ear before and after running,the colour of the skin and ear  are brown(depend on the people skin) at this stage the all mechanism for the skin are in normal condition like the blood veesel are normal size and the sweat gland are not excreated the sweat.and the temperature are 36.5 ^oc.after doing the running activity the temperature increase around 37^oc the colour also changing from brown to red and body become sweating it because the skin have changing inside it like the blood vessel become expand and bigger also near the eperdemis.the sweat gland also becoming the secret the sweat the skin outer layer.

Conclusion

By doing this experiment the morphology of the skin can be identify and observed.we also can know the function of the skin by doing it.we also can know the body exact temperature when  doing running activity.

Question

1. Explain the differences in the structure of the thick and thin layer of the skin

The thick skin have five layers is startum basala, spinosum, granulosum, lucidum and corneum.while the thin skin four layers is contains five layers: startum basala, spinosum, granulosum, and corneum .there are one structure that is lucidium,it is a thin, clear layer of dead skin cells in the epidermis.it were created because the cell from the lower layer are pushed out into the above layer.for all the other layer it is no different at all.

2. A white man ,jog on a cold day,what color would the expect his to be ?

a)just before starting to run-white

b)during the run-red

c)5minutes after the run-reddish

3. Explain how the sweating helps maintain normal body temperature

Sweat are excreated from the sweat gland,it located in the layer of dermis to the eperdemis layer.when the body temperature are increase the heat are release out from it by the blood vessel and the sweat are excreated the sweat to store the heat inside the sweat and realese out the heat by the sweat.

References

Anatomy and physiology note

http://www.innerbody.com/image_nerv16/nerv141.html