Saturday, September 22, 2007

What if assignment?

How would your life be different if you did not have bones in your feet and hands?
Life would be completely different if we didn't have bones in our hands and feet.
In life we do alot of things with our hands. For example picking up things, it wolud be impossilbe to do without the bones. The bones help support the body so wihtout them in our feet we wouldn't be able to stand or move around, both our hands and feet would be like jelly. Everyone would have to get wheel chairs to survive without these bones.


How would your life be different if you did not have muscles inside your face? We have alot of muscle in our faces. With those muscles we are sometimes able to talk and express our feelings and emotions. Our faces would be saggy we wouldnt be able to communicate verbally with each other. life wouldnt be to bad with the bones missing in our faces because we could always use pencil and paper to communicate.

How would your life be different if your spine was one long bone as opposed to multiple bones?Our spine helps to keep us up right. Having one long bone would also keep us up right but we would be stuck in that position, and there would be less movement. We are able to move our bodys around because the body has multiple bones. For example bending over to pick up something it probably would be very painful if we had one long bone for a spine. I think that we would be able to survive without changing anything.

How would your life be different if you had your skeleton on the outside? If our skeletons were on the outside of the body things wouldn't be so good. The bones are inside the body to protect internal organs and also to support the body. I believe that it would be very painful, and I dont feel that there would be any changes that we could make that would help us to survive.

Wednesday, September 19, 2007

Skeletal Muscle Physiology Worksheet











1. What percent of the body is smooth muscle? Striated muscle? 5 to 10 percent, 40.



2. Name 3 types of muscle proteins. What is the function of each? stroma, cellular,contractile. An inert structural element or skeleton to hold the rest of the structures in place, enzymes that are not just found in the muscles but also in other parts of the body, two types myosin and actin and necessary for contraction







3. What is a myofibril? independant element in muscle fibers







4. Sketch a picture of a sarcomere. Label the I-band, the A-band, the Z-line and the H-zone.







5. Name the two filaments that make up a sarcomere. thick and thin







6. Draw a sarcomere at rest, stretched out and contracted.







7. What is the sliding filament theory? During muscle contraction the myofilaments myosin and slide toward each other







8. Muscle relaxation ensues upon the removal of what? calcium ions





Tuesday, September 18, 2007

Basic joint anatomy worksheet

Why is there little to no movement in a fibrous joint? Because the bones making up the joint are unitedwith strong fibrous tissue.


What is an example of a fibrous joint? sutures which hold together the bones of the skull.


Describe a cartilaginous joint and give an example. formed where two bones are united by intervening fibrocartilage, the vertebrae


What type of joint essentially allows free movement? synovial joints


What lubricates a joint cavity? synovial fluid


For the following joint types please list the name of the joint type, the type of movement of the joint, the shape of the joint and an example.


A. Plane joint the carpal bones, slightly curved articular suface which permit gliding or slipping in any direction

B. Hinge joint cylindrical surface, the elbow joints

C. Condylar joint articular surface, the knee joint.

D. Ball and Socket joint spherical articulation, the shoulder joints

E. Ellipsoidal joint like ball and socket but oval shaped, the wrist

F. Pivot joint boney peg, joints between the radius and the ulna

G. Saddle joint resembles western saddle, the thumb joint

Monday, September 17, 2007

Basic skeletal worksheet



1. Describe the 4 functions of bones. supporting, protecting internal organs, provide muscle attachment, blood cell production.



2. How many bones are there in the human body?206.




3. What are the two divisions of the skeletal system? Name 5 specific bones in each division. Axial, appendicular.



4. What bone makes up the upper arm? humerus



5. What bone makes up the face? Skull



6. Name two bones that protect vital internal organs. skull, rib cage.



7. What bone in the forearm is always on thumb side? the ulna.



8. What bone is movable for back muscles to attach to? scapula.



9. What bone is also known as the shin bone? tibia.



10. Sketch a human skeleton and label the following bones: skull, clavicle, sternum, humerus, radius, ulna, patella, femur, tibia, fibula, pelvis, vertebral column, scapula and rib cage.

Wednesday, September 5, 2007

Study questions

Study questions
Chapter 2
Distinguish between the study of anatomy & physiology. Structure of the body parts, study of the function.
Example that shows relationship between structure & function of these body parts. The stomach pouch like shape & ability to expand are suitable to its functions for storing food.
List the levels of organization within the human body in reference to a specific organ. Atoms, molecule, macromolecule, cells, tissue, organs, organ system, and organism.
Distinguish between a midsagittal, transverse, and a frontal cut. Divides body into right & left portions, cuts body into superior & inferior portions, cut body into anterior & posterior portions.
6. Distinguish between dorsal & ventral body cavities, & name two smaller cavities that occur within each. Dorsal can be subdivided into two parts, cranial cavity within the skull contains the brain & spinal cavity contains the spinal cord.
10. Define homeostasis, & explain its importants. The relative contsancy of the bodys internal environment, which is composed of the blood & the tissue fluid that bathes the cells.
Objective questions part IV
Matching organ systems
digestive 24. Stomach
urinary 25. Kidneys
respiratory 20. Lungs
circulatory 21. Heart
reproductive 22.ovaries
nervous 23. Brain
endocrine 19. Thyroid gland
Medical reinforcement exercise
3. Gasterectomy means excision of the stomach
5. Macrocephalus means large skull
6. Transthoracic means across the chest wall
7. Bilateral means two or both sided
9. Dorsalgia means pain in the upper back
10. Endocrinology is the study of the endocrine system (secretion within).

Chapter 4
Study questions
4. Describe the structure & function of endoplasmic reticulum Er. Include the terms smooth ER, rough ER, & ribosomes in your description. Endoplasmic reticulum forms a membranous system of tubular canals that begin at the envelope & branches throughout the cytoplasm. Ribosomes are attached to portions if ribosomes are present its called rough ER if they are not its called smooth ER.
5. Describe the structure & function of the golgi apparatus. Mention vesicles & lysosomes in your description. Packages a product for export, the product is enclosed within a vesicle that moves toward the plasma membrane, where the vesicle discharges its contents. Lysosomes carryout intracllular digestion and digestive enzymes.
6.describe the structure & function of the mitochondria. Mention the energy molecule ATP in your description. Burns glucose products to produce ATP molecule.
8. Contrast passive transport (diffusion, osmosis, filtration) with active transport of molecules across the plasma membrane. Diffusion is passive movement of molecules from an area of lower concentration. Osmosis id the diffusion of water across a plasma membrane. Blood pressure aids matter by pushing water and dissolve solutes of the capillary.
Objective questions
Match the organelles in the key to the functions given.
mitochondria 3. Power house
nucleus 5. Control center
golgi apparatus 1. packaging & secretion
rough ER 4. Protien synthesis
centrioles 2. Cell division
Chapter 5
Study questions
1.What is tissue? Similarly specialized cells that perform a common function in the body.
3. What are the functions of epithelial tissue? Name the different kinds of epithelial tissue, & give a location for each. Forms a continuous layer, or sheet, over the entire body surface and most of the body’s inner cavities, squamous lines the lungs, cuboidal lines the kidneys, & columnar found near the digestive system.
4. What are the functions of connective tissue? Name the different kinds of connective tissue, & given a location for each. Binds structure together provides support & protection, fill space, produces blood cells, & stores fat.
9.Name the different types of body membranes, & associate each type with a particular location in the body. Mucous lines the interior walls of the organs & tubes that open to the outside of the body, serous lines cavities including thoracic & abdominoplvic cavities & internal like the heart , synovial line freely movable joint cavities & composed of connective tissue, cutaneous forms the outer layer of the skin.