B. BCDwu Label these parts of a skeletal muscle: C. D. E F. 723 Structure of a Skeletal Muscle Bone 2. Tendon 3. F A B Give me three (3) differences between cardiac and skeletal muscle: E C D
Skeletal muscle is a type of voluntary muscle tissue that is connected to the skeleton and under conscious control. It is responsible for body movements such as walking, running, jumping, and lifting, and also helps maintain posture. Skeletal muscle is composed of elongated, multinucleated muscle fibers that contract and relax to produce movement.
The structure of skeletal muscle consists of several distinct components, including:
-
Muscle fibers: The basic unit of contraction in skeletal muscle, consisting of elongated cells with multiple nuclei.
-
Myofibrils: Thin, cylindrical structures within each muscle fiber that contain the contractile proteins actin and myosin.
-
Sarcomeres: The basic unit of contraction within myofibrils, consisting of actin and myosin filaments that slide past each other to produce contraction.
-
Endomysium: A layer of connective tissue that surrounds each muscle fiber.
-
Perimysium: A layer of connective tissue that surrounds groups of muscle fibers and divides the muscle into fascicles.
-
Epimysium: A layer of connective tissue that surrounds the entire muscle and helps to attach it to bones and other structures.
-
Blood vessels and nerves: These provide nutrients and signals to the muscle, allowing it to contract and relax in response to commands from the brain.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
