احياء الجهاز الهيكلي و العضلي

The correct answer is "من دهون مخزنة" (consists of stored fats). The explanation is that the yellow marrow is composed of adipose (fat) tissue. It serves as a storage site for fats and can be converted into energy when needed by the body.

The correct answer is "عملية تكوين العظام" which translates to "bone formation process" in English. This answer is correct because التعظم (pronounced "alta'zam") refers to the process of bone formation in the human body. It is the process through which bones are developed and grow, involving the deposition of minerals and the formation of new bone tissue.

الرسغ هو من العظام القصيرة في الجسم.

The function of the red bone marrow is to produce red blood cells, white blood cells, and platelets.

Endorphins are natural painkillers produced by the body. They help to alleviate pain and promote feelings of well-being and happiness.

The given correct answer is "اربطة,الاربطة". This answer correctly identifies the term "اربطة" (ligaments) and provides the plural form "الاربطة" (the ligaments). The question describes solid bands of dense tissue that connect one bone to another, which is a characteristic of ligaments. Therefore, the answer aligns with the description given in the question.

The correct answer is "ورك - كروي". This means "hip - ball joint" in English. A ball joint is a type of joint that allows for rotational movement in multiple directions, similar to the movement of a ball in a socket. The hip joint is a prime example of a ball joint, as it allows for a wide range of movement in different directions.

The correct answer refers to "dense bone" or "strong bone" in English. This type of bone provides strength and protection to the body.

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When neural signals reach the muscle, the actin filaments slide towards each other causing the muscle to contract, while the myosin filaments remain stationary.

The correct answer is "الجمجمة". The question is asking for a flat bone, and the skull (الجمجمة) is a flat bone.

The given correct answer "لا هوائي" means "non-airborne". This suggests that the muscles involved in respiration do not rely on air or are not directly involved in the process of breathing in and out. This could imply that the muscles mentioned are not responsible for the inhalation and exhalation of air, but rather for another function unrelated to respiration.

The question is asking for the long bones, and the correct answer is "الساق" (the leg) and "الذراع" (the arm). Both the leg and the arm have long bones, such as the femur in the leg and the humerus in the arm. The other options, "الجمجمة" (the skull) and "الرسغ" (the wrist), do not have long bones.

The correct answer is "فاتح" which means "light" in English. This answer suggests that the color of the muscles that contract quickly is light.

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The correct answer is "الهيكل الطرفي ,هيكل طرفي" which translates to "The skeletal system, limb structure." This answer correctly identifies the components of the skeletal system, which include the bones of the upper and lower limbs, shoulder, and pelvis.

The correct answer is "منزلق, المنزلق". This answer suggests that the type of joint being referred to is a "slider joint" or a "sliding joint". This type of joint allows for linear motion along a specific axis, similar to a sliding mechanism. The term "منزلق" translates to "slider" or "sliding", while "المنزلق" translates to "the slider" or "the sliding". Therefore, this answer accurately describes the type of joint being discussed.

The statement is correct because slow twitch muscles, which are responsible for slow contractions, have a higher endurance compared to fast twitch muscles, which are responsible for fast contractions. Slow twitch muscles are more resistant to fatigue and can sustain contractions for longer periods of time, making them better suited for endurance activities such as long-distance running or cycling. On the other hand, fast twitch muscles are better suited for explosive movements but fatigue more quickly.

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The correct answer is "متعددة و طرفية" which translates to "multiple and peripheral." This suggests that skeletal muscles have multiple origins and insertions, meaning they attach to more than one bone, and they are also located peripherally in the body. This is in contrast to smooth muscles, which are typically found in the walls of organs and blood vessels, and cardiac muscles, which are found in the heart.

The statement is saying that cardiac muscle fibers are single and located in the middle. This is true because cardiac muscles are made up of individual cells that are connected by intercalated discs, allowing them to contract as a single unit. These muscles are found in the middle layer of the heart, known as the myocardium. Therefore, the answer "صح" (true) is correct.

The correct answer is "العظم الاسفنجي,العظم الإسفنجي,العظم الأسفنجي,عظم اسفنجي". This is because the given description of the bone matches the characteristics of the spongy bone. Spongy bone has a lower density compared to compact bone and contains multiple cavities. It also contains bone marrow.

The correct answer is "osteoclasts". Osteoclasts are cells that break down and remove old or damaged bone tissue. They play a crucial role in the process of bone remodeling and repair.

The given correct answer is "هيكل محوري" which translates to "axial skeleton" in English. The explanation for this answer is that the statement describes the components of the axial skeleton, which includes the skull, vertebral column, ribs, and sternum. The axial skeleton is responsible for providing support and protection to the central axis of the body, including the brain, spinal cord, and vital organs in the thoracic cavity. Therefore, "هيكل محوري" accurately represents the described structure in the statement.

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The correct answer is "وحيدة مركزية" which translates to "central solitary". This term refers to the fact that smooth muscle cells are single, uninucleated cells located in the middle of the muscle fibers. Unlike skeletal muscle cells, which are multinucleated, smooth muscle cells have a single nucleus. This characteristic allows smooth muscles to contract and relax independently, providing control and coordination in various physiological processes.

The correct answer is "جميع المذكور" which means "all of the mentioned". This answer is correct because all of the mentioned functions (دعامة - الحماية - تكوين خلايا الدم - تخزين الكالسيوم والفسفور - الحركة) are functions of the skeletal system. The skeletal system provides support and structure to the body, protects internal organs, produces blood cells, stores minerals like calcium and phosphorus, and allows for movement.

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The given correct answer is "الكالس,كالس". This answer suggests that a soft tissue mass is formed at the site of the fracture, which is known as callus. Callus formation is a natural healing process that occurs when a bone is fractured. The callus helps to stabilize the fracture site and promote bone healing.

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The options given are "الوجه" (the face), "العمود الفقري" (the spinal column), and "الجمجمة" (the skull). The question asks for irregular bones, which are bones that do not have a regular shape. The face and the spinal column are examples of irregular bones, while the skull is a flat bone. Therefore, the correct answer is "الوجه" (the face) and "العمود الفقري" (the spinal column).

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The dark color of slow-twitch muscles is due to the abundance of myoglobin. Myoglobin is a protein found in muscle cells that stores oxygen and gives the muscles their dark color. Slow-twitch muscles have a higher concentration of myoglobin compared to fast-twitch muscles, which is why they appear darker in color.

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The given question is asking for the muscles that can be controlled when moving the bones. The term "عضلات ارادية" translates to "voluntary muscles" in English. Voluntary muscles are the muscles that are under conscious control, meaning we can control them when we want to move our bones. Therefore, the correct answer is "عضلات ارادية".

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During embryonic development, bone cells called osteoblasts grow to form bones. These cells are responsible for the synthesis and secretion of the bone matrix, which eventually mineralizes and becomes hardened to form bone tissue. Osteoblasts play a crucial role in bone formation and remodeling throughout life.

The correct answer is that bones are classified into long, short, flat, and irregular bones.

The given statement states that "smooth muscles line many internal organs." This means that smooth muscles are found in the walls of various internal organs such as the stomach, intestines, blood vessels, and uterus. Smooth muscles are involuntary muscles that are not under conscious control. They are responsible for the contraction and relaxation of these organs, allowing them to perform their functions such as digestion, blood circulation, and childbirth.

The correct answer is "مفصل درزي الجمجمة, درزي جمجمة,المفصل الدرزي الجمجمة,الدرزي الجمجمة". This is because the question is asking for the type and name of the joint, and the given answer options provide the correct type and name of the joint, which is "مفصل درزي الجمجمة" (Suture joint of the skull) and "درزي جمجمة" (Skull suture).

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The correct answer is "ميوسين اكتين,أكتين ميوسين,اكتين ميوسين,ميوسين أكتين". This answer is correct because it correctly identifies the two proteins involved in muscle contraction, which are myosin and actin. The answer provides different arrangements of the two proteins, but all arrangements are correct.

During exercise, the body produces energy by breaking down glucose through a process called glycolysis. This process produces lactic acid as a byproduct. As exercise intensity increases, the body cannot clear lactic acid as quickly as it is produced, leading to its accumulation in the muscles. This buildup of lactic acid can cause fatigue, muscle soreness, and a feeling of exhaustion after exercise. Therefore, the correct answer suggests that the feeling of fatigue after exercise is due to the accumulation of lactic acid in the muscles.