Take Your Anatomy Questions Quiz

There are approximately 206 bones in the human body. This is the correct answer because the human skeleton is made up of a complex structure of bones that provide support, protection, and enable movement. While the exact number of bones can vary slightly from person to person, the average adult human body consists of 206 bones. These bones are categorized into different types, including long bones, short bones, flat bones, and irregular bones, which together form the framework of the human body.

The name of the upper arm bone is the humerus.

The term "anterior" is used to describe something that is positioned in front of or before another structure or object. In this context, "front" is synonymous with "anterior" as it refers to the forward-facing direction. Therefore, the correct answer is "Front."

The tarsals are a group of bones located in the foot. They are responsible for providing stability and support to the foot, allowing it to bear weight and facilitate movement. The tarsals connect the bones of the lower leg (tibia and fibula) to the metatarsals, which are the bones of the midfoot and forefoot. Therefore, the correct answer is Foot.

Zygomas are cheek bones. They are a pair of bones that form the prominences of the cheeks and the sides of the face. These bones contribute to the overall structure and shape of the face, as well as providing support for the muscles involved in chewing and facial expressions. The term "zygoma" is derived from the Greek word for "yoke" or "bridge," which reflects their function in connecting various parts of the skull and face.

Veins are blood vessels that carry blood back to the heart. Oxygen-poor blood is typically carried by veins, as it has already delivered oxygen to the body's tissues and organs and is returning to the heart to be reoxygenated in the lungs. In contrast, arteries carry oxygen-rich blood away from the heart to the rest of the body. Therefore, the correct answer is oxygen-poor blood.

The term "prone" refers to a patient who is lying on his abdomen. This position is often used in medical settings for procedures or examinations that require access to the back or spine. It allows for better visualization and access to the posterior aspect of the body. Lying on the back is called supine, which is the opposite of prone.

The correct answer is Calcaneus. The calcaneus is the medical term for the heel bone. It is the largest bone in the foot and is located at the back of the foot, forming the heel. The calcaneus plays a crucial role in weight-bearing and helps to support the body's weight during activities such as walking, running, and jumping.

The transverse process is a bony projection that extends from the sides of each vertebra in the spine. It serves as an attachment point for muscles and ligaments, providing stability and support to the spine. The other options, such as the cranium, foot, knee, and shoulder, do not have transverse processes. Therefore, the correct answer is spine.

The appendix is located in the right lower quadrant (RLQ) of the abdomen. This is the area on the right side of the abdomen, below the belly button. The appendix is a small pouch-like organ attached to the large intestine. It is a common site for inflammation and infection, leading to a condition called appendicitis. If left untreated, appendicitis can be a medical emergency, requiring surgical removal of the appendix.

The lumbar region of the spine consists of five vertebrae, numbered L1 to L5. These vertebrae are located in the lower back and are the largest and strongest in the spinal column. They provide support to the upper body and allow for a wide range of movements, such as bending and twisting. Therefore, the correct answer is 5.

The gallbladder is located in the right upper quadrant (RUQ) of the abdomen. It is a small pear-shaped organ that is situated just below the liver. The RUQ is the area of the abdomen that is located on the right side and above the belly button. The gallbladder plays a role in storing and concentrating bile, which is produced by the liver and helps in the digestion of fats.

The total number of lobes on both lungs is 5. Each lung has 2 lobes on the left side and 3 lobes on the right side. The left lung has a superior and inferior lobe, while the right lung has a superior, middle, and inferior lobe. Therefore, when we add up the lobes on both lungs, we get a total of 5.

The left pulmonary vein carries oxygen-rich blood.

Vagal maneuvers refer to various techniques used to stimulate the vagus nerve, which can help regulate heart rate and rhythm. Slow conduction through the AV node is the correct answer because vagal maneuvers primarily work by decreasing the conduction of electrical signals through the AV node, which is responsible for transmitting signals from the atria to the ventricles. By slowing down the conduction through the AV node, vagal maneuvers can be effective in treating certain cardiac arrhythmias, such as supraventricular tachycardia.

Hypoxia refers to a condition characterized by low levels of oxygen in body tissue. This can occur when there is insufficient oxygen supply to the tissues, leading to a decrease in cellular oxygenation. It can be caused by various factors such as respiratory disorders, cardiovascular problems, or high altitudes. Hypoxia can have detrimental effects on the body, affecting organ function and potentially leading to serious health complications if left untreated.

The percentages on an infant are head (18%), anterior torso (18%), posterior torso (18%), each leg (14%), and each arm (9%). So the front of a leg is 7 percent.