Skip to main content

Humen bone 🦴

 The human skeleton is made up of 206 bones, which can be categorized into the axial skeleton and appendicular skeleton. Here's a list of the major bones in the human body:

Most important in body and main topic for all classes 

### Axial Skeleton (80 bones):

1. **Skull (Cranium and Face)**  

   - Cranium (8 bones):  

     - Frontal bone  

     - Parietal bones (2)  

     - Temporal bones (2)  

     - Occipital bone  

     - Sphenoid bone  

     - Ethmoid bone  

   - Facial bones (14 bones):  

     - Nasal bones (2)  

     - Maxilla (2)  

     - Zygomatic bones (2)  

     - Palatine bones (2)  

     - Lacrimal bones (2)  

     - Inferior nasal conchae (2)  

     - Vomer  

     - Mandible  


2. **Auditory Ossicles (6 bones)**  

   - Malleus (2)  

   - Incus (2)  

   - Stapes (2)  


3. **Hyoid Bone** (1 bone)


4. **Vertebral Column (Spine)** (26 bones)  

   - Cervical vertebrae (7)  

   - Thoracic vertebrae (12)  

   - Lumbar vertebrae (5)  

   - Sacrum (1, composed of 5 fused vertebrae)  

   - Coccyx (1, composed of 4 fused vertebrae)  


5. **Thoracic Cage (Rib Cage)**  

   - Sternum (1)  

   - Ribs (24)  


---


### Appendicular Skeleton (126 bones):

1. **Shoulder Girdle (Pectoral Girdle)**  

   - Clavicles (2)  

   - Scapulae (2)  


2. **Upper Limbs (Arms)**  

   - Humerus (2)  

   - Radius (2)  

   - Ulna (2)  

   - Carpals (16, 8 in each wrist)  

   - Metacarpals (10, 5 in each hand)  

   - Phalanges (28, 14 in each hand)  


3. **Pelvic Girdle**  

   - Hip bones (2, also known as coxal bones or os coxae, each composed of the ilium, ischium, and pubis)  


4. **Lower Limbs (Legs)**  

   - Femurs (2)  

   - Patellae (2)  

   - Tibiae (2)  

   - Fibulae (2)  

   - Tarsals (14, 7 in each ankle)  

   - Metatarsals (10, 5 in each foot)  

   - Phalanges (28, 14 in each foot)  

 Clear your all doubts in this photo ❤️



This list provides the names of the bones, grouped by their locations and functions within the body.

Comments

Post a Comment

Popular posts from this blog

Red blood cell

 ### Red Blood Cells (RBCs) - Full Details Red blood cells (RBCs), also known as **erythrocytes**, are the most abundant type of blood cell in the human body and play a crucial role in transporting oxygen from the lungs to the tissues and carbon dioxide from the tissues back to the lungs. Here’s a detailed overview of RBCs: ### 1. ** Structure and Composition** - **Shape**: RBCs have a unique **biconcave disc shape**. This shape increases the surface area for gas exchange and allows RBCs to deform, which helps them pass through narrow capillaries. - **Size**: The average diameter of a red blood cell is around **7–8 micrometers**. - **Membrane**: The outer membrane of RBCs is composed of a lipid bilayer embedded with proteins, including **glycophorin** and **spectrin**, which contribute to the cell's flexibility and shape. - **Cytoplasm**: The cytoplasm of RBCs is packed with **hemoglobin**, a protein responsible for oxygen and carbon dioxide transport.    ### 2. ** Functi...
Post a Comment
Read more

High blood pressure and low blood pressure

 **High Blood Pressure (Hypertension)** and **Low Blood Pressure (Hypotension)** are two common conditions related to the force of blood against the walls of the arteries. Both conditions can have significant health effects, though in different ways. ### ** High Blood Pressure (Hypertension )** High blood pressure, or hypertension, occurs when the force of the blood against the artery walls is consistently too high. Hypertension often develops over many years and can lead to serious health problems, such as heart disease and stroke. #### ** Causes of High Blood Pressure:** 1. ** Primary Hypertension** : This is the most common type and develops over time without a specific cause. Risk factors include genetics, age, lack of physical activity, unhealthy diet (especially high in salt), and excessive alcohol consumption. 2. ** Secondary Hypertension**: This type is caused by an underlying condition, such as kidney disease, hormonal problems, certain medications, or sleep apnea. #### *...
Post a Comment
Read more

Full details in blood, about blood

 Blood is a vital fluid in the human body and plays a critical role in maintaining homeostasis, transporting nutrients, and fighting infections. Here's a detailed breakdown of blood, its components, functions, and related aspects: ## # 1. **Overview of Blood ** Blood is a specialized bodily fluid that circulates through the cardiovascular system (heart and blood vessels). It carries oxygen and nutrients to cells and removes waste products like carbon dioxide. ### 2. ** Composition of Blood** Blood is composed of two main parts: **Plasma** and **Formed elements**. #### a. ** Plasma ** Plasma is the liquid component of blood, making up about 55% of its total volume. It is a yellowish fluid that consists primarily of water (about 90%) and various dissolved substances: - ** Water**: Acts as a solvent and medium for transport. - ** Proteins**: Such as albumin, globulins (antibodies), and fibrinogen (important for blood clotting). - ** Electrolytes**: Sodium, potassium, calcium, chlorid...
Post a Comment
Read more