1. Explain the relationship between the skeletal and muscular systems. The relationship between the skeletal and muscular systems is that we are made up of bones all throughout our body and we need this to stand and hold our body together‚ similar to the skeletal system the muscular system is made up of soft tissue and is lined all over our body. We could not stand without the system as well. 2. Why is the circulatory system important? This system is important because it is used to circulate blood
Premium Heart Blood Circulatory system
Experiment 2: Skeletal Muscle ABSTRACT Frog skeletal muscle is used as an animal model to study muscle contraction. The objectives of this experiment is to demonstrate the physiological responses of skeletal muscle to electrical stimuli using frog gastrocnemius‚ to understand twitch‚ summation‚ tetanus and fatigue‚ to investigate the relationship between initial tension and force of contraction‚ to explore the differences between human and frog skeletal muscle. The threshold voltage is 0.4V. The
Premium Neuromuscular junction Skeletal muscle Acetylcholine
I have only listed the questions that required answers that are a part of this exercise. A C T I V I T Y 1 Identifying the Latent Period How long is the latent period? _____2.78____ msec Note: If you wish to print your graph‚ click Tools on the menu bar and then click Print Graph. 5. Increase or decrease the stimulus voltage and repeat the experiment. (Remember that you can clear the tracings on the screen at any time by clicking Clear Tracings.) Record your data here: Stimulus Latent voltage:
Premium Muscle Skeletal muscle
Anatomy Review: Skeletal Muscle Tissue Graphics are used with permission of: Pearson Education Inc.‚ publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction • Skeletal muscle cells have unique characteristics which allow for body movement. Page 2. Goals • To compare and contrast smooth muscle cells‚ cardiac muscle cells‚ and skeletal muscle cells. • To review the anatomy of skeletal muscle. • To examine the connective tissue associated with the skeletal muscle. • To
Premium Muscle Skeletal muscle Cardiac muscle
Skeletal muscle is a voluntary and striated muscle that attaches to the skeleton to allow control over posture and movement. Each skeletal muscle consists of bundles of muscles fibers called fascicles. These fascicles are composed of many individual muscle fibers or muscle cells that can be up to several millimeters long. These muscle fibers are composed of myofibrils‚ which are organized into thick filaments‚ myosin‚ and thin filaments‚ actin. These filaments are organized into repeating structures
Premium Muscle Muscular system Myosin
EXERCISE 2: Skeletal Muscle Physiology Student Name: Student ID#: Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions
Premium Skeletal muscle Myosin Muscle
EXERCISE 2: Skeletal Muscle Physiology Student Name: ___________________________ Student ID#: _____________________ Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers
Premium Skeletal muscle Muscular system Myosin
The Skeletal System:Bone Tissue 1* Dynamic and ever-changing throughout life 2* Skeleton composed of many different tissues 3* Cartilage bone‚ tissue‚ epithelium‚ nerve‚ blood forming tissue‚ adipose‚ and dense connective tissue Functions of Bone 1* Supporting & protecting soft tissues 2* Attachment site for muscles making movement possible 3* Storage of the minerals‚ calcium& phosphate -- mineral homeostasis 4* Blood cell production occurs in red bone marrow (hemopoiesis) 5* Energy
Premium Bone
Skeletal Muscle Physiology Activity 1 1. Skeletal muscle fiber- long‚ cylindrical cell with multiple oval nuclei arranged just beneath the sarcolemma Motor unit- all of the muscle cells controlled by a single motor neuron Skeletal muscle twitch- a single stimulus-contraction-relaxation cycle in a skeletal muscle Electrical stimulus- uses an electrical current to cause a single muscle or a group of muscles to contract Latent period- the time between the stimulation of a muscle and the start
Premium Neuromuscular junction Skeletal muscle Muscular system
Lab 4: Skeletal Muscle Function Exercise 5: The Length-Tension Relationship Materials and Methods In this experiment I used a frog anesthetized with ms222. The frog’s skin is cut and removed from both the legs‚ the Achilles tendon is cut and the tendon and calf muscle are removed from the lower legs. The femur muscle is also cut. Attached to the legs are femur clamps which are connected to the transducer arm‚ stimulation electrodes are then positioned against the muscle. I plugged the output
Premium Muscle Acetylcholine Skeletal muscle