Muscular System

What is a pennate muscle?


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2010-10-03 01:17:09
2010-10-03 01:17:09

Pennate Muscles

In a pennate muscle, the fascicles form a common angle with the tendon. Because the muscle cells pull at an angle, contracting pennate muscles do not move their tendons as far as parallel muscles do. But a pennate muscle contains more muscle fibers--and, as a result, produces more tension--than does a parallel muscle of the same size. (Tension production is proportional to the number of contracting sarcomeres; the more muscle fibers, the more myofibrils and sarcomeres.)

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Related Questions

short fibers, arranged obliquely to their tendons

Muscles look like a feather.

The fascicles are short and attach obliquely to a central tendon that runs the length of a muscle.

The fascicles are short and attach obliquely to a central tendon that runs the length of a muscle. by kR

Unipennate is not a muscle but a pennate is a muscle. This muscle is located throughout the human body that allows high force production but little motion.

A type of pennate muscle wherein the diagonal muscle fibers are in multiple rows with the central tendon branching into two or more tendons.SupplementExample of multipennate muscle is deltoid muscle

The Pennate arrangement. The fascicles attach obliquely to the tendon.

pennate is the opposite of parallel (fusiform) parallel muscle eg biceps brachii has fibres which run parallel, whereas pennate fibres run diagonally to the axis of movement, unipennate, bipennate and multipennate refers to the number of tendonous attachments unipennate muscle fibers which converge on one side of a tendon ca be found in the gluteus maximus, bipennate fibers converge in a featherlike way towards a central tendon, and multipennate converge on more tendons such as deltoid which has three heads.

In non pennate or fusiform structure, fibers run in line with the line of pull. There is a longer fiber length associated with a fusiform structure, but often not a very thick cross-section -Weaker overall, but greater ROM (range of movement) making it good for speed In a pennate or penniform muscle structure, there is an oblique fiber pattern. Fibers do not pull in the same direction as the line of muscle pull. There is a shorter fiber length but usually a thicker cross sectional area. -There are three pennate types 1) Unipennate: One-sided feather such as in the semimembranous 2) Bipennate: Two-sided feather such as in the gastrocnemius 3) Multipennate: many-headed two sided feather such as in the deltoids -Good for strength, smaller ROM, meaning it is not as great for speed

deltoid gastrocnemius rectus femorus

Muscle fibers are grouped into fascicles, these fascicles form a muscle. The fascicles are arranged in 3 basic patterns. Parallel fascicles are arranged length wise in a parallel form. Circular fascicles are arranged in rings in a concentric pattern. Pennate fascicles are arranged in a feather pattern, with muscles arranged like a feather attached to a tendon along its length.

one lives in salt water and the other in fresh water.

look up bacillarophyta on wiki. these were some of the first organisms to live on earth.

Tendons connect muscle to muscle and also muscle to bone.

Yes, Calf muscle is a skeletal muscle.The calf muscle is called the gastrocnemius, and it is a skeletal muscle.

the muscle is called the are muscle were your arm is loccated. the muscle is called the are muscle were your arm is loccated. the muscle is called the are muscle were your arm is loccated.

Muscle does not connect to muscle. Fascia is a connective tissue that connects muscle to organs. Tendons connect muscle to bone.

smooth muscle,involuntary muscle, cardiac muscle smooth muscle,involuntary muscle, cardiac muscle

Well, whem I looked it up, it seems to be Pennate muscles. Look it up, im sure its right.

it is the Skeletal Muscle

The skeletal muscle is a type of the visceral muscle.

Tendons tie muscles to bones and ligaments tie muscle to muscle.

The difference between muscle mass and muscle hypertrophy is that muscle hypertrophy is the increase in size of skeletal muscle while muscle mass is the weight of your body muscle.

Abdominal Head of Pectoralis Major Muscle Abductor Digiti Minimi Muscle Abductor Pollicis Brevis Muscle Adductor Longus Muscle Adductor Pollicis Muscle Biceps Brachii Muscle Brachialis Muscle Brachioradialis Muscle Clavicular Head of Pectoralis Major Muscle Clavicular Head of Sternocleidomastoid Muscle Deltoid Muscle Depressor Anguli Oris Muscle Depressor Labii Inferioris Muscle Extensor Carpi Radialis Muscle Extensor Digitorum Longus Muscle Extensor Digitorum Longus Tendons Extensor Expansions Extensor Hallucis Brevis Muscle Extensor Hallucis Longus Muscle Extensor Hallucis Longus Tendon External Abdominal Oblique Muscle Flexor Carpi Radialis Muscle Flexor Carpi Ulnaris Muscle Flexor Digiti Minimi Muscle Flexor Digitorum Profundus Tendons Flexor Digitorum Superficialis Muscle Flexor Digitorum Superficialis Tendons Flexor Pollicis Bevis Muscle Flexor Retinaculum Frontal Belly of Epicranius Muscle Galea Aponeurotica Gastrocnemius Muscle Gluteus Medius Muscle Gracilis Muscle Iliopsoas Muscle Iliotibial Tract Inferior Extensor Retinaculum Inguinal Ligament Lateral Head of Triceps Brachii Muscle Latissimus Dorsi Muscle Levator Labii Superioris Alaeque Nasi Muscle Levator Labii Superioris Muscle Long Head of Triceps Brachii Muscle Lumbrical Muscle Medial Head of Triceps Brachii Muscle Mentalis Muscle Nasalis Muscle Omohyoid Muscle Opponens Pollicis Muscle Orbicularis Oculi Muscle Orbicularis Oris Muscle Palmaris Longus Muscle Patellar Ligament Pectineus Muscle Peroneus Brevis Muscle Peroneus Brevis Tendon Peroneus Longus Muscle Peroneus Tertius Tendon Platysma Muscle Pronator Teres Muscle Pyramidalis Muscle Rectus Abdominis Muscle Rectus Femoris Muscle Rectus Femoris Tendon Risorius Muscle Sartorius Muscle Sartorius Tendon Scalene Muscles Serratus Anterior Muscle Soleus Muscle Sternal Head of Sternocleidomastoid Sternocostal Head of Pectoralis Major Sternohyoid Muscle Superior Extensor Retinaculum Tensor Fasciae Latae Muscle Tibialis Anterior Muscle Trapezius Muscle Vastus Lateralis Muscle Vastus Medialis Muscle Zygomaticus Major Muscle Zygomaticus Minor Muscle

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