Generate Quiz 6A8082EC63321

Each of the human forelimbs has thirty bones: With the scapula and two long, parallel bones, the radius and ulna, at its distal end, the humerus forms a ball and socket joint. Eight tiny carpal bones, which articulate with the palm’s five metacarpals, connect the radius and ulna to the wrist. The fingers, which have 14 tiny bones called phalanges arranged in 5 rows, one row in each finger, extend from the palm. Option B is correct because the relevant detail for this question is that the palm’s bones are known as metacarpals.

The bones along the central axis of the body, such as the ribs, vertebrae, sternum, and cranium and facial bones, make up the axial skeleton. In contrast, the appendicular skeleton, which joins the axial skeleton, includes the pectoral girdles, pelvic girdles, and appendages. The axial skeleton does not include them. Option D is therefore the right choice.

It is involuntary for cardiac muscle to contract. It is a branching, striated tissue made up of intercalated discs with gap junctions that allow the cardiac muscle cells to speak to each other. Additionally, each cardiac muscle cell has a unique nucleus.

Since it addresses every other option that is correct, this one is the right one. The grouping or classification based on structure is known as structural classification. Gomphosis and synchondrosis suture are covered.

The sarcolemma, a type of cell membrane, envelops the single, centrally located nucleus found in every cardiac myocyte.

When estrogen levels in older women decline after menopause, it is known as osteoporosis. It causes thin, porous, and feeble bones.

Myofibrils are striated muscle organelles made up of sarcomeres that are precisely aligned in series. Sarcomeres are the smallest functional contractile unit of muscle.

The process by which cartilage is created from condensed mesenchyme tissue is called chondrification, or chondrogenesis. The cartilage’s extracellular matrix is secreted by immature cells called chondroblasts. Chondromatosis is a rare synovial disorder that is benign (noncancerous).

Smooth muscles are represented by Option A. The walls of internal organs like the stomach, intestine, bladder, etc., are made of smooth muscles. These muscles are not striated and cannot be controlled voluntarily. Thus, this is the right choice.

The atlas is the first vertebra in the cervical region. It provides support for the skull and permits head nods.