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UNIT 4. ANIMAL SYSTEMS

Lecture 19. Tissues, Organs, Protection, Support, and Movement

1. Objective

The objective is to introduce the major groups of animals and structure and function of the major tissue, organ, skin, skeleton, muscle, circulatory, and nervous systems of humans.

2.  Classification of Animals

2.1.  Phylogenetic Tree of Organisms (19-1)

2.2.  List of Major Animal Phyla (19-2)

2.3.  Evolution of Man (19-3)

 

3.  Tissues

3.1.  General: embryo becomes arranged into three different tissues

bulletectoderm gives rise to skin and nervous system
bulletmesoderm give rise to muscle, skeleton, and organs of circulation reproduction, and excretion
bulletendoderm gives rise to lining of gut and associated organs

3.2.  Epithelial (protection excretion, absorption)

bulletbasic cell shapes in simple epithelium (19-4)

3.3.  Connective

3.3.1.  examples of connective tissues (19-5)

3.3.2.  loose connective tissue (19-6)

3.3.3.  specialized
bulletbone
bulletcartilage
bulletblood
bulletmuscle
bulletnervous

3.4.  Muscle

bulletexamples of skeletal, smooth, and cardiac muscle tissue (19-7)

3.5.  Nervous

bulletnerve cell (19-8)

 

4.  Organs

4.1.  Organ systems of the human body (1/2) (19-9)

4.1.1.  Integumentary System
bulletprotection from injury and dehydration
bulletbody temperature control
bulletexcretion of some wastes
bulletreception of external stimuli
bulletdefense against microbes
bullethuman skin in cross section (19-10)
bullettwo layered structure of human skin (19-11)

4.1.2.  Muscular System
bulletmovement of body parts
bulletmaintenance of posture heat production

4.1.3.  Skeletal System
bulletsupport
bulletprotection of body parts
bulletsites for muscle attachment
bulletproduction of blood cells
bulletcalcium and phosphorus storage

4.1.4.  Nervous System
bulletdetection of external and internal stimuli
bulletcontrol and coordination of responses
bulletintegration of all activities of organ systems

4.1.5.  Endocrine System
bullethormonal control of body functions
bulletworks with nervous system

4.1.6.  Circulatory System
bullettransport of materials to and from cells
bulletstabilization of internal temperature and pH

Organ systems of the human body (2/2) (19-12)

4.1.7.  Lymphatic System
bulletreturn of extracellular fluid to blood
bulletsites for immunity

4.1.8.  Respiratory System
bulletoxygen supply and carbon dioxide removal
bulletpH regulation

4.1.9.  Digestive System
bulletingestion of water and food
bulletpreparation of foods for absorption
bulletelimination of food residues

4.1.10. Urinary System
bulletmaintenance of volume and composition of extracellular fluids

4.1.11.  Reproductive System
bulletmale: production and transfer of sperm to egg
bulletfemale: production of eggs; protection and nutrition of embryo

 

5. Support: Skeletal System

5.1.  Structural organization of long bones of mammals (19-13)

5.2.  Characteristics of Bone

bulletcartilage - soft bone tissue, protection
bullettendon - connects muscle to bone
bulletligament - links bones

5.3.  Skeletal Structure

bulletmajor skeletal structure and muscles in humans (19-14)
bullethuman skeleton (19-15)
bullethuman spine (19-16)

5.4.  Joints (17)

 

6.  Muscle System

6.1.  Major skeletal muscles in humans (19-18)

6.2.  Membrane systems of a muscle cell (19-19)

6.3.  Skeletal Muscle Contraction

bulletfine structure of a muscle cell (19-20)
bulletsliding-filament model of muscle contraction (19-21)

6.4.  Control of Contraction

bulletexample of motor units in vertebrate muscles (19-22)

 

7.  Critical Concepts or Questions

7.1.  You should be know the major groups (phyla) of animals and characteristics that differentiate them.

7.2.  You should be familiar with the major tissues and where they are located (which organs, body parts, etc.)

7.3.  You should know the location and function of the major organs, bones, muscles, and nerves.

7.4.  Explain how muscles, bones, and nerves are interconnected and how they function together.

7.5.  Learn some detail about the structure of a bone and muscle.

8.  Vocabulary

  coelom cuticle
  ectoderm endoderm
epithelium exoskeleton gill
  gut invertebrate
mantle medusa mesoderm
metamorphosis molting nematocyst
nephridium nerve cord nerve net
notochord peritoneum pharynx
polyp protostome trachea
vertebral column vertebrate adipose tissue
water-vascular system blood bone
cardiac muscle cartilage epithelium
dense connective tissue effector germ cell
extracellular fluid homeostasis integrator
loose connective tissue yellow marrow sarcomere
muscle tissue red marrow myosin
negative feedback mechanism organ synovial joint
nervous tissue organ system receptor
positive feedback mechanism tissue osteocyte
skeletal muscle smooth muscle somatic cell
actin appendicular skeleton dermis
axial skeleton cartilaginous joint epidermis
fibrous joint Haversian canal myofibril
integumentary canal intervertebral disk keratinization
  sliding-filament model  

9.  Webpage Links

Biology 209 - Vertabrate Zoology - K.S. Kilburn, Old Dominion University Introduction to Vertebrates, Tree of Life, and Stock Photographs and Images

Marine Specimens - Gulf Specimen Marine Lab Dozens of images of marine specimens from the gulf coast in a variety of habitats.

Visible Human - Anatomy Slices! - J. Butt, M. Heiss, B. Yamauchi Choose your slice of the human body !!!

BodyQuest - An Interactive Tour through Your Body - ThinkQuest, Taiwan Tutorial, experiments, and search for terms.

Virtual Body (requires Shockwave plug-in) - Columbia/HCA Healthcare Corporation Brain, digestive system, heart, and skeleton

10.  Illustration Documentation