Write Unit 06 The Integumentary System Listen Prerequisite

Write Unit 06 The Integumentary System

Listen Pre-requisite knowledge • Organ: • One or more tissues working together to complete one or more specific functions • Organ System • A group of organs working together to complete one or more specific functions

Unit 06 Latin Root Words Prefix- Root or -Suffix Definition Cutaneous Root Skin Dermis Root Skin Papillary Root Nipple or swelling Follicle Root Little bag Kerat- Prefix Horn Melan- Prefix Black Seb- Prefix oil or grease Sub- Prefix Below Integument Root Covering Stratum Root Layer A day: Quiz on Friday 11/20/2015 B day: Quiz on Monday 11/23/2015 Write

Write 6. 1 Introduction

Write 6. 1. 1 I know the organs that constitute the integumentary system

Listen

Write Organs of the Integumentary System • Skin • Hair • Nails • Accessory Organs • example: Sweat Glands

Write 6. 1. 1 I know the major functions of the integumentary system

Listen

Write Integumentary System Functions 1. 2. 3. 4. 5. 6. Protective Covering Water Regulation Heat Regulation Sensory Reception Waste Excretion Creates Vitamin D

Write 6. 2. 1 Types of Membranes Describe the four types of membranes

Listen Serous Membranes

Listen Serous Membranes

Listen Serous Membranes

Listen Serous Membranes

Listen Mucous Membranes

Listen Mucous Membranes

Listen Synovial Membranes

Listen Synovial Membranes

Listen Cutaneous Membrane

Write Mucous Membranes Serous Membranes Function: Reduce friction between organs Where: Around Organs Tissue Composition Pericardial = Heart Pleural = Thoracic (lungs) Peritoneal = Abdominal) Simple Squamous Epithelium and Loose Connective Tissue Fluid: Keeps tissues soft, traps bacteria dust and pollen Where: Lines cavities and tubes that open to the outside of the body. Ex: oral and nasal cavities Tissue Composition Epithelium (usually simple columnar or psuedostratified) over a loose connective tissue Fluid: Mucous Serous Fluid Types of Membranes Function: Lubricates Joints Where: Joints Tissue Composition Dense connective tissue overlaying loose connective and adipose tissue Fluid: Synovial Fluid Synovial Membranes Function: Protective Covering + water and heat regulation Where: Entire Body Tissue Composition Multiple Fluid: Sweat and Sebum Cutaneous Membrane (Skin)

Content Check 1. 2. 3. 4. 5. 6. 7. 8. 9. B D A B B ____Found in the respiratory and digestive tract ____ Covers the entire body ____ Found around organs and body cavities ____ Keeps tissues soft and traps bacteria ____ Usually composed of simple columnar or pseudostratified epithelial tissue with goblet cells ____ Reduces friction between organs ____ Found around your joints A Composed of simple squamous epithelium ____ and loose connective tissue D ____ Acts as a protective covering against external elements such as heat and dehydration D 10. ____ Composed of multiple tissue types Answer a. Serous Membrane b. Mucous Membrane c. Synovial Membrane d. Cutaneous Membrane

Write 6. 3 Skin and Its Tissues

Write 6. 3. 1 Objective I know the three layers of the skin

Analyze

Draw and Write Epidermis Sebaceous Gland Dermis Erector Pilli Muscle (goosebumps) Venous Capillary Sweat Gland Hair Follicle Nerve Subcutaneous Layer Or Hypodermis Arterial Capillary Adipose Tissue (Fat)

Write Three Layers of Skin • Epidermis (above dermis) • Dermis (middle Layer) • Hypodermis or Subcutaneous Layer (below Dermis)

Answer Content Check 1. What are three layers of the skin? 2. Which layer is closer to the outside of the body? 3. Which layer is in the middle? 4. Which layer is below the dermis? 5. What are some structures you would find in the dermis layer of the skin? 6. Why would the body store fat in the skin?

Interesting Fact: If the skin of a 150 -pound person were spread out flat, it would cover approximately 20 square feet.

Directions • Label and Color your Skin Study Guide

6. 3. 2 Objective I know the type of tissue that makes up the epidermis and can identify its five layers.

Stratified Squamous Epithelium Free Surface Stratum Coreum (Dead layers of keratin filled skin cells) Stratum Lucidum (Clear Layer found only in thick skin i. e. palms of hands Stratum Granulosum (Begin to see Keratin Granules) Stratum Spinosum (Cells become spiny) Stratum Basale (base layer) Dermis Basement Membrane

Write Layers of the Epidermis Tissue: Stratified Squamous Epithelium Stratum Basale Bottom Layer Living Cells Supplied with blood reproduce Stratum Corneum Stratum Lucidum Stratum Granulosum Stratum Spinosum Stratum Basale Stratum Spinosum Stratum Granulosum Stratum Lucidum Stratum Corneum Cells become spinous Keratin Build up Living Cells Can begin to see the keratin granules Dying Cells Only found in palms and soles Creates Thick Skin Dead Cells Many layers of dead cells

Answer Content Check 1. What kind of tissue is the epidermis composed of? 2. From bottom to top, what are the five layers of the epidermis? 3. Which layer of the epidermis undergoes cellular division?

6. 3. 3 Objective I can describe the function of the epidermis

Write Epidermis Function • Protection from external environment • Prevent Water Loss • Regulate Body Temperature • Skin Color

Write 6. 3. 4 Objective I understand the process of Keratinization

Write Keratinization • Keratin • A tough, fibrous, and water-proof protein found in the cells of the epidermis, hair and nails https: //www. youtube. com/watch? v=OKos. GSm 7 Ps 4

Keratinzation • Keratinization • The process of filling the uppermost layers of the epidermis with Keratin • Keratinocyte (Keratin producing Cell)

Homework Collection • Your Protein Synthesis paragraph is due to today. • Please turn it into the basket. • If you have not finished it, you may still turn it in at a later date, however, a zero will be placed in the grade book until it is turned in. • It will also be marked as late. There is no penalty, it is for information only.

Epidermis Content Check • Get out a piece of paper and put away your notes. • Write a paragraph describing the structure and function of the epidermis. Make sure to include the tissue type, the layers and what they do as well as the process of keratinization. • Feel free to add labeled pictures or diagrams.

Epidermis Content Check • Tissue: Stratified Squamous Epithelium • 5 Layers Stratum Basale: Living/reproduces Stratum Spinosum: Living/ Spiny shaped/ making keratin Stratum Granulosum: Dying/ Full of Keratin Granules Stratum Lucidum: Dead/clear layer/only found in thick skin • Stratum Corneum: Dead/Full of keratin • • • Keratinzation: process of filling cells of the epidermis with keratin • Function: water/temp regulation and protection

6. 3. 5 Objective I can explain how skin gets its color as well as factors that can change its color.

Listen

Listen

Skin Color Write • Melanocyte • • • Cell that creates melanin Located towards the stratum basale Stimulated by the sun (tan) Cytoplasmic extensions to other layers of the skin Melanocyte and melanin production controlled by your genes • Melanin • A pigment that deflects UV rays • Used to protect other cells

What are freckles? http: //genetics. thetech. org/ask 195

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Listen

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Factors that can influence Skin Color Write • Sunlight, UV and X-rays • Tanning • Blood Supply • Blushing, inflammation • Lack of Oxygen in blood • Cyanosis (turning blue) • Diet • Carotene yellow in vegetables • Silver = blue skin • Liver Disease • Jaundice (build up of bilirubin turns skin yellow)

6. 3. 6 Objective I can describe the structure and function of the dermis

Listen Papillary Layer Sebaceous Gland Dermis Dense Connective Tissue Erector Pilli Muscle (goosebumps) Venous Capillary Sweat Gland Hair Follicle Nerve Arterial Capillary

Dermis Structures and Functions • Tissue composition • Dense connective tissue • Structures • Dermal Papillae • Creates fingerprints • Blood vessels • Supply nutrients • Regulate body temperature • Nerve Cells • Sensory reception • Control of glands and erector pili muscle • Hair follicles • Hair Growth • Sebaceous glands • Secrete oils (sebum) • Sweat Glands • Secrete sweat Write

Listen

Listen Loop Radial Loop – loop points to radius (thumb) Ulnar Loop – Loop Points to Ulnar (Pinky) Arch Whorl

Fingerprint Activity Directions • Get out a scratch piece of paper. • Roll your fingerprints and see what type of fingerprint your papillary layer has created.

6. 3. 7 Objective I can describe the structure and function of the subcutaneous layer

Listen

Dermis Structures and Functions • Tissue composition • Loose connective tissue • Adipose tissue • Structures • Blood vessels • Nutrient supply • Nerves • Sensory Write

6. 4 Accessory Organs

6. 4 Accessory Organs

6. 4. 1 I can describe the structure and function of hair

Hair Follicles Function Protection Sensory reception Parts Hair Follicle: tube-like depression Hair Papilla: Contains the cells that create hair Arrector Pili Muscle: lifts hairs (goosebumps) https: //www. youtube. com/watch? v=Qq. H 9 SH 7 c. R 7 E

6. 4. 3 I can describe the structure and function nails

Hair Follicles Function Protective Coverings Parts Lunula: active growing region of the nail Eponychium (cuticle): thickened skin that protects the nail from infection https: //www. youtube. com/watch? v=a. TSVHwzk. YI 4

6. 4. 2 I can describe the structure and function sebaceous glands

Sebaceous Glands Function Secrete sebum (or oil) Parts Just the gland https: //www. youtube. com/watch? v=Op. Eue. PQ 1 jrk

6. 4. 4 I can describe the structure and function sweat glands

Sweat Glands Function Secrete Sweat) Parts Eccrine glands: respond to temperature Apocrine glands: respond to emotional distress https: //www. youtube. com/watch? v=Op. Eue. PQ 1 jrk

6. 5 Regulation of Body Temperature

Reading Assignment • Read 6. 5 Regulation of Body Temperature • Take notes • Write and answer the check your recall questions in your notes. • Read 6. 6 Healing of Wounds • Take notes • Write and answer the check your recall questions in your notes • When you are done, pick up a Unit 06 Review and work on that for the rest of the period.

6. 6 Healing of Wounds

Common Skin Disorders