What class of lever is described by the following activities: (1) the soleus plantar flexing the foot; (2) the deltoid abducting the arm; (3) the triceps brachii extending the forearm during push-ups?

Q: Is the biceps brachii an extensor or a flexor?

A: A large two-headed muscle that lies on the upper arm's front between the shoulder and elbow is the…

Q: What are two factors which allow the gastrocnemius and soleus muscles to generate greater plantar…

A: The two main muscles that form the calf of the lower legs are gastrocnemius and soleus muscles. The…

Q: Name three extrinsic muscles and two intrinsic musclesthat flex the phalanges

A: The phalanges of the hand are the group of small bones that comprise the bony core of the digits…

Q: Which muscles are used more often, the external intercostals or internal intercostals? Explain.

A: The process of respiration involves the breathing in (inspiration) and breathing out of the air…

Q: Where are the effort, fulcrum, and resistance in the act of dorsiflexion? What class of lever does…

A: A lever is a rigid and elongated object rotating about a fixed point. This point which is fixed is…

Q: abductor pollicis longus and extensor pollicis brevis are muscles that help move what anatomical…

A: Introduction: Most of the bones which are present in our body have bumps, projections, ridges,…

Q: To do Left hip adduction (A4) in the Frontal plane, the ( name the muscle ) would have to lie     (A…

A: The hip joint is a multi-axial ball and socket type of synovial joint. The head of the femur…

Q: Jacob is competing in a chin-up competition. What type of musclecontractions are occurring in his…

A: The muscular system is defined as the organ system comprising the skeletal, cardiac, and smooth…

Q: Compare and contrast first-, second-, and third-class levers

A: Levers in our body are shaped from bones, joints and muscles. A lever comprises of an inflexible…

Q: What movement do the fibularis muscles have incommon? The tibialis muscles?

A: The majority of muscles in the body are formed by skeletal muscles. They comprise about 40% of the…

Q: classify any given joint action as a first-, second-, or thirdclass lever;

A: The term joint is used to describe the site where two bones of the skeletal system are attached to…

Q: Flexor carpi ulnaris B- Palmaris longus C- Flexor digitorum profundus D- Extensor carpi radialis…

A: Skeletal system is a body system that form structural framework around the body and imparts…

Q: 39. What are the agonist(s) for the action occurring at the finger (MCP) joints as shown below?…

A: The muscles of the forearm, the wrist and the hand are required for various movements of the upper…

Q: What implications does this all have on the ability to perform curls and pull-ups using "overhand"…

A: Introduction Muscles are soft tissues and have the ability to contract and therefore move the other…

Q: Which of the following muscles resist the actions of the supination of the forearm Bicep brachii…

A: Supination can be referred to as an anatomical position in which the foot is elevated outward and…

Q: Why is quadratus lumborum considered the most powerful of all the lateral trunk flexors? What other…

A: The quadratus lumborum muscle is a muscle in the posterior abdominal wall lying deep inside the…

Q: IF a patient is unable to dorsiflex his or her foot.Which muscle do you think would be involved in…

A: Dorsiflexion is the ability to contract or pull you feet inwards ie towards your shins. While…

Q: What are the origins for the muscles that pull the head down toward the chest?

A: Muscles are referred to as the tissues of the body that are soft and contractile. They are comprised…

Q: What difference does foot plant or no foot plant make to the functions of the gluteus medius and…

A: Muscles are the body's greatest protein storage facility. Whenever dietary protein is scarce, the…

Q: If my goals is to achieve ONLY horizontal abduction at the glenohumeral joint by activating the…

A: Horizontal abduction is a transverse extension in which the movement of the humerus in a transverse…

Q: Differentiate  appendicular and axial muscles

A: Introduction: Muscles are the soft tissue present in mammals. The muscle cells comprise protein…

Q: Name at least two extrinsic and two intrinsic muscles that flex the phalanges.

A: Introduction: The movement of fingers is associated with two groups of muscles, namely, intrinsic…

Q: Define Flexors? Give one example of it?

A: Muscles in the body can be  a flexor,  extensor or a stabilizer depending on  It's action  and…

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: When you flex your biceps brachii while doing “biceps curls,” what is the type of movement?

A: Bicep Curl is a single-joint, isolation movement that only targets the biceps muscle. This muscle…

Q: Name at least two extrinsic and two intrinsic muscles that flex the phalanges.

A: The movement of fingers is associated with two groups of muscles, namely, intrinsic and extrinsic…

Q: Name three thigh muscles that help you keep your seat astride a horse.

A: Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of myosin and…

Q: Flex the shoulder? • Flex the elbow? Flex the wrist?

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body.…

Q: Which of the following muscles did he use?

A: Muscles are soft tissues. Many stretchy fibers make up muscles. Different types of muscles have…

Q: Identify two axial muscles named for their region?

A: Effectors are tissues and organs commanded by the CNS to carry out responses, most of which involve…

Q: Which of the following muscles insert on the iliotibial tract? Gluteus maximus 2)Gluteus medius…

A: The iliotibial tract is a thick band of fascia that sudden spikes in demand for the lateral side of…

Q: For each of the following muscles, describe the motion(s) producedwhen the muscle contracts. It may…

A: a. flexion and supinationb. flexion of the hip and extension of the knee

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 type of contraction occurs in wrist flexion?

A: The action of bending your hand down at the wrist so that your palm faces in toward your arm is…

Q: what type of contraction happens when the wrist is in neutral position?

A: Introduction: The region of the body at which two or more bones unite to facilitate movement is…

Q: Why do you suppose there are more and larger muscles involved in plantar flexion of the foot than…

A: Plantar flexion is defined as a movement where the top of the foot points away from the leg. Plantar…

Q: Why is the rector femoris the only muscle of the quadriceps femoris group to have an action on the…

A: The quadriceps is the strongest muscle of the human body and is located in the anterior compartment…