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What are the origins for the muscles that pull the head down towards the chest?
The neck muscle is the muscle that pulls the head to the chest. This muscle is very important because, without it, the head would also not be able to move side to side or up.
Which is smaller a myofibril or a myofiber?
Short Answer:A myofibril is smaller than a myofiber (muscle fiber).Long Answer:Skeletal Muscle Hierarchy:Muscle OrganPerimysium = white fibrous connective tissue & areolar connective tissue that surrounds each fascicleFascicle = bundle of skeletal muscle fibersEndomysium = areolar connective tissue that surrounds each muscle fiberMuscle Fiber ( Myofiber) = a muscle cellMyofibrils = contractile protein organellesMyofilaments = contractile proteins composed of:thick filaments = made of myosinthin filaments = made of actin
What macromolecule makes up muscle?
Actin and Myosin make up muscle cells and are mainly made up of the macromolecule protein. Proteins are the most diverse and complex molecules that exist in living organisms. Proteins are made up of amino acids which are the building blocks of muscle within the body.
What bones make up your heart?
The heart is not made up of bones; it is a muscular organ primarily composed of cardiac muscle tissue. The rib cage protects the heart, which lies within the chest between the lungs and is surrounded by the sternum (breastbone) and the thoracic vertebrae in the spine.
What is the level of organization of muscle?
Organ.
What type of sensory receptors are made up of very small skeletal muscle fiber?
muscle spindles
What repeating units make up a muscle fiber?
sacomeres are a single unit of a muscle fiber multiple sacomeres make up a myofibril
Which muscle is most at work in the up phase of a push-up?
chest and shoulders.
What are the origins for the muscle that pull the head down toward the chest?
The neck muscle is the muscle that pulls the head to the chest. This muscle is very important because, without it, the head would also not be able to move side to side or up.
What is the difference between a muscle organ a muscle fiber myofibril and a myofilaments?
A muscle organ is made up of several muscle fibers, which are the individual cells that contract to produce movement. Each muscle fiber contains myofibrils, which are long, thread-like structures that run the length of the fiber and are responsible for contraction. Myofibrils are composed of myofilaments, the smallest units, which include actin (thin filaments) and myosin (thick filaments) that interact to facilitate muscle contraction. Together, these structures create the hierarchy of muscle organization from the whole muscle down to the molecular level.
What is a fiber made up made up of?
It's made of glass.
What are the major parts of skeletal muscle fiber?
It is put here short and sweet. 1. Marrow 2. Calcified Bone 3. Periosteum 4. Spongy Bone 5. Cartilage TENDONS attach the MUSCLE to the BONE.Like the stringy thing in a chicken
What are the origins for the muscles that pull the head down toward the chest?
The neck muscle is the muscle that pulls the head to the chest. This muscle is very important because, without it, the head would also not be able to move side to side or up.
What are the origins for the muscles pulling the head down toward the chest?
The neck muscle is the muscle that pulls the head to the chest. This muscle is very important because, without it, the head would also not be able to move side to side or up.
What is the large flat muscle that moves up and down to alter the volume of the chest?
diaphragm
What protein make up a muscle fiber?
the two proteins that make up muscles fibers are acting and myosin
What is the organ in the human body that is made up of muscle?
The "heart", which is made up entirely of cardiac muscle.
