What is the function of thrombocytes?

The xiphoid process is a small, cartilaginous extension located at the inferior end of the sternum (breastbone), which serves as an attachment site for certain abdominal muscles. The hyoid bone is a U- shaped bone located in the neck, not on the sternum. The ossa coxae are also known as the hip bones, which are in the pelvic region, not on the sternum. Sesamoid bones are small, rounded bones that are embedded within tendons and can be found in various locations throughout the body, but not necessarily on the sternum.

When the sympathetic nervous system is stimulated, it activates the "fight or flight" response, which prepares the body for physical activity or stressful situations. This response includes several physiological changes, such as:

Increased heart rate and cardiac output: The sympathetic nervous system releases adrenaline and noradrenaline, which increase heart rate and cardiac output to provide more oxygen and nutrients to the muscles.

Decreased uterine activity: The sympathetic nervous system inhibits uterine contractions to prevent

premature labor.

Decreased pancreatic activity: The sympathetic nervous system inhibits insulin secretion and promotes glucagon secretion to increase blood glucose levels.

Decreased gastrointestinal activity: The sympathetic nervous system inhibits digestive functions to divert blood flow to the muscles.

The malleus, incus, and stapes are three small bones, collectively known as the ossicles, located in the middle ear. These bones work together to transmit sound waves from the eardrum to the inner ear, where they are converted into nerve impulses that are then sent to the brain. The malleus is attached to the eardrum, the incus is in between the malleus and the stapes, and the stapes is connected to the inner ear. Together, they form a chain that amplifies the sound waves and transmits them efficiently to the inner ear.

The left ventricle of the heart normally has the thickest wall, which is composed mainly of cardiac muscle tissue (myocardium). The left ventricle has to generate enough force to pump oxygen-rich blood to the rest of the body through systemic circulation, which requires greater muscular effort than the right ventricle, which pumps blood only to the lungs via pulmonary circulation. The thickness of the left ventricular wall ensures that it can withstand the pressure required to generate this forceful contraction.