Briefly explain why doing sit-ups, particularly with the feet held down, can strain your low back. Include in your answers muscle(s) implicated in the effect.

Q: Select the two most appropriate muscle(s) that perform(s) this body movement: | Teres Major |…

A: Introduction: The wrist joint or the radiocarpal joint is the synovial joint of the ellipsoid type…

Q: What does it mean when the PT says a patient's legs scissor when he ambulates? A. The patient is…

A: Introduction:-  Scissor gait is due to the flexion of the hip. It is caused in cerebral palsy. It is…

Q: The _________ is the strongest muscle of the body for its size Temporalis Messeter Stapedius…

A: In the case of flexion, the angle between two specific parts of the body gets reduced whereas, in…

Q: During this movement which muscle is the antagonist? Please tell me what bone the belly of these…

A: Skeletal muscles are one of the three major categories of muscle (the other two being the cardiac…

Q: Explain, structurally, why pennate muscles tend to be very powerful.  What aspect of muscular…

A: Pennate muscles are often called penniform muscles with fascicles' group and attach obliquely to its…

Q: Would the muscles that cause flexion of the neck have their origin or insertion on the head? Explain…

A: Yes, the muscles that cause flexion of the neck have their origin or insertion on the head.

Q: Select the two most appropriate muscie(s) that perform(s) this body movement: Supraspinatus |…

A: The picture shown here represents a type of upper body exercise, bicep curl It helps in increasing…

Q: Which muscle is NOT supposed to make contraction when you do elbow flexion? Triceps brachii O Biceps…

A: Introduction: Elbow flexion is the movement of forearm towards the body by giving a bend at the…

Q: dentify the major muscles described next:

A: Muscle may be a soft tissue found in most animals. Muscle cells contain macromolecule filaments of…

Q: Consider only the effect of the brachioradialis muscle for these questions: If a weight is held in…

A: Levers may be used to move a much higher weight with a small force. Bones serve as lifting arms…

Q: What type of muscles are these Type 1, Type 2a or 2b? A. orbicularis oculi, Buccinator and platysma…

A: The main purpose of the muscle, which is a soft tissue in the body, is to provide power. Movement is…

Q: List all of the muscles that can adduct the hip joint Which of these muscles can both internally and…

A: The adducting muscles of the hip all arise from this region on the ischium and pubis.Their primary…

Q: Muscles are often paired.  One muscle can describe as the--  and the other muscle as the--.

A: Muscle is a band or bundle of contractile tissue of the body. It is derived from the mesodermal…

Q: Which is a muscle that elevates and retracts the tongue?a. Buccinatorb. Stylohyoidc. Hyoglossusd.…

A: A middle fibrous septum divides the tongue into two halves, that is the right and the left halves.…

Q: What is a motor unit? Explain why the size of motor unitscan be different in different muscles

A: Introduction: The contractile tissue that brings about a movement is muscle. Muscles can be regarded…

Q: OmohyoidA. An infrahyoid muscleB. Strap-like musclesC. Depresses the hyoid boneD. A, BE. A, B, C

A: Muscles are the soft tissues made up of muscle fibers actin and myosin specialized for contraction…

Q: Not everyone has the same muscles. From the information provided in this chapter, identify two…

A: Humans not only differ in their physical appearance ,height ,weight etc. but anatomically too they…

Q: Which of these is not a suprahyoid muscle?a. genioglossusb. geniohyoidc. stylohyoidd. mylohyoide.…

A: Suprahyoid muscle is a group of muscle present in the neck superior to the hyoid bone. It is…

Q: Extensors Flexors Levators Depressors Compressors Quadratus lumborum Semispinalis cervicis Longus…

A: Anatomy and physiology are the branch of biology, anatomy deals with the study of the structure of…

Q: Back mm. Erector spinae muscles Spinalis muscle Intrinsic Longissimus muscle Iliocostalis Rotatores…

A: INTRINSIC MUSCLES OF VERTEBRAL COLUMN There are 3 intrinsic muscles of spines -  Iliocostalis…

Q: The _____ muscles diverge like a V from the middle of the upper thorax to attachments behind the…

A: A cell is the basic structural and functional unit of the body. The group of cells that are…

Q: Tendinous intersectionsa. attach the rectus abdominis muscles to the xiphoid process.b. divide the…

A: The rectus abdominal muscle in human, is a pair of abdominal muscles that runs parallel to each…

Q: s an antagonist to plantar flexion at the ankle Soleus  Gastrocnemius Tibialis anterior Tibialis…

A: The human body is made up of many systems which co-ordinate together . For the physical maintenance…

Q: Select the two most appropriate muscle(s) that perform(s) this body movement: | Teres Major |…

A: The picture shown here represents a type of upper body exercise, lateral arm raises. It helps in…

Q: Which of the following muscles act as antagonists to the tibialis anterior muscle? Check all that…

A: Tibialis anterior muscle, is the largest of the 4 muscles in the anterior compartment of the leg. It…

Q: Based on its fascicle orientation, determine whether each of the following muscles is built for…

A: The sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle…

Q: You would use this muscle to help you cross your legs. (Hint: sitting on the floor in a yoga…

A: Various muscles in our body, especially at the joints, help us to do flexion, adduction, extension,…

Q: SKELETAL MUSCLES OF THE CAT define the ff: 1. multifidus spinae 2. sacrospinalis 3. semispinalis…

A: Muscle- Muscles are present everywhere in the body and are responsible for performing several…

Q: Muscles that oppose one another area. synergists. c. hateful. e. fixators.b. levers. d. antagonists.

A: Muscles are soft tissues present in the body which provide support to the skeleton and function in…

Q: Select the two most appropriate muscle(s) that perform(s) this body movement: A. Semitendinosis |B.…

A: The muscular system consists of muscles found all over the body. A muscle is a soft tissue that…

Q: Which of the following is a combination of two muscles which act to flex the thigh at the hip joint?…

A: Hip flexion is the movement of bringing the knee up towards the chest. It is a significant motion…

Q: What are some examples of parasitism?

A: Parasitism is a relationship between two living organisms of different species in which one…

Q: The flexor digitorum longus muscle [ Select ] the toes and [ Select ] the foot in both cats and…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: 1AKING MOVEMENTS: ou know that muscles cause movement by pulling your bones around. You also hav…

A: Biceps: It is one of the chief muscle of arm. It can act on both the shoulder and elbow joint. It…

Q: Which of the following statements are true of the locations and functions of muscles? (Read…

A: The human body consists of various systems that function together to carry out their daily…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.