Question 1 (20 pts) This question is in part based on your Reading Gentle Touch

Question

Question 1 (20 pts) This question is in part based on your Reading Gentle Touch Receptors" Our skin has many diverse functions and it is, therefore, not surprising that we have a range of touch receptors and structures supporting these receptors. (I) Briefly review the main functions of the skin and explain which structural components of the skin (use histological language for r answer!) are responsible for these functional properties. (II) explain w the non-neural components of the end-organs contribute to the functionality of touch receptors. (III) What are the different types of touch we can feel and what touch receptors are responsible for these sensations? You are welcome to use outside resources while answering this question-just avoid any suspicion of plagiarism!

Explanation / Answer

structure of skin

skin is the largest organ of the human body.it consists of two layers Epidermis (layer which we seen as skin )and Dermis(second layer ) and beneath the dermis is hypodermis.Epidermis is made up of dead cells and it acts as a protective layer for the other layers.Epidermis also contain sensitive cells called Touch receptors.Dermis contain hair follicle, sweat gland, sebaceous gland and blood vessels.The lower layer is the subcutaneous tissue composed of fat and connective tissue. it acts an insulator to regulate body temperature.

functions of skin

sensation - skin is an organ with sensation .skin contain network of nerve cells to give information to brain about the change in environment such as temperature , pressure and pain.

regulation

protection

Different types of sensation

pressure , vibration - Mechano receptors

hot and cold - thermo receptors

pain - pain receptors

changes in the muscle - proprioreceptors

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