Layers And Functions Of The Skin Flashcards
The skin regulates heat through?
Arrector pili muscle contraction and sweating.
What does the skin produce when exposed to UV light
Melanin and vitamin D
One of the main functions of the skin sensation which includes
Touch, pressure, temperature and pain
Which of the following protects the skin against bacterial and fungal infections
Acid Mantle
Sebaceous glands secrete sebum onto the skin surface to
Lubricate and soften the skin and hair
Elimination is when sweat glands excrete waste products by the process of
Perspiration
What substances can be absorbed through the skin?
Oils and medication
The thick, triangular muscle that covers the shoulder and allows movement of the arm away from the body is called
Deltoid
The muscle found on the front of the chest that moves the arm towards the upper part of the body is called the
Pectoralis
The large triangular muscle that covers that upper back and neck, and draws the head backwards to allow the shoulders to raise is called the
Trapezius
The muscle that is found between the eyebrows, which draws the eyebrows as in surprise is called the
Frontalis
The muscle that is found between the eyebrows, which draws the eyebrows together as in frowning is called the
Corrugator
The muscle found in the centre of the chin, that dimples the chin is called
Mentalis
The Muscle that surrounds the mouth to help us kiss is the
Orbicularis oris
The facial muscle used for blowing is the
Buccinantor
The Muscle that elevates and retracts the lower jaw
Temporalis
The muscle that draws the mouth sideways and outward is the
Risorius
What action is the masseter muscle
Raises the lower jaw and clenches the teeth
The Muscle that closes the eyelids and is used for blinking is the
Orbicularis oculi
The function of the levators labii is to
Lift the upper lip and help form the nasolabial fold
The muscle that allows the neck to rotate and nod the head in called the
Sternocleidomastoid
The outer surface structure of bones are referred to as
Compact
Which of the following are irregular bones
Vertebra
What happens to the collagen and elastin fibres in the dermis as ageing occurs?
They begin to break down and the skin becomes loose and wrinkly
What happens to muscles as we age
Muscle tone decrease and wrinkles appear
The composition of blood is
Plasma, erythrocytes, leucocytes and tbrombocytes
Lymph is comprised of
Waste products, plasma, erythrocytes and lymphocytes
The functions of blood are
Transport, heat regulation, defence and clotting
The functions of lymph are
To transport fat, control swelling and fight infection
What effects does the lymphatic system have on the skin and muscles
Helps remove waste and toxins from the skin and muscles so they work more efficiently
What effects does the circulatory system have on the skin and muscles
It increases the blood supply to the skin and muscles nourishing the cells, improving cell renewal
3 main layers of the skin
Empidermis, dermis, hypodermis
Name 5 layered of the epidermis
Horny layer (cornuem) Clear layer (lucidum) Granular layer (granulosium) Prinkle layer (Spinsum) Basal layer (germinator)
What are 7 functions of the skin
Shapes
Sensation, heat regulation, absorption, protection,
Excression, secression, Vitamin d production
