It specifically focuses on bones, muscles (including attachments, innervation, functions), arteries, veins, and nerves.Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster. This region is called the The last three groups of hand muscles, that is the Check out our study unit about the muscles of the hand.Do you find it difficult to memorize the muscles of the hand?
Learning anatomy is a massive undertaking, and we're here to help you pass with flying colours. This complex structure connects the entire hand to the radius and ulna, facilitates the passage of tendons together with the above mentioned neurovascular structures from the forearm to the hand, and permits us to exploit all its movements. Proximal Phalanges The five cylindrical bones closest to the metacarpals that connect the five digits to the palm. Take advantage of the following mnemonic to make your life a little easier!The nerves innervating the muscles of the hand originate higher up, from a structure called the The important nerves travelling towards the hand from the brachial plexus are the If you use the mnemonic given below you will never confuse the muscle innervation of the median and ulnar nerves.Ulnar nerve supplies all intrinsic muscles of the hand except the The following learning resources will explain everything you need to know about the innervation of the hand, as well as its origins.Since the hand is the terminal region of the upper extremity numerous anastomoses take place here, resulting in quite a complex vascular network. Healthline Media does not provide medical advice, diagnosis, or treatment. Metacarpals The five bones that form the palm of the hand and connect to each digit. ; The median nerve supplies sensation to the radial 3 and a half fingers on the palmar aspect, as well as the nail beds. Gross motor movements allow us to pick up large objects or perform heavy labor. All rights reserved. Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.The hand itself consists of specific bones onto which various muscles are attached, and a collection of neurovascular structures responsible for drainage and innervation. Explore and learn about the bones in the hand with our 3D interactive anatomy atlas © 2005-2020 Healthline Media a Red Ventures Company. It is made up of the wrist joint, the carpal bones, the metacarpal bones, and the phalanges. The ulnar nerve (C8-T1) supplies all of the intrinsic muscles of the hand, apart from the muscles of the thenar eminence and the radial two lumbricals (these muscles are supplied by the median nerve (C5-T1). A solid understanding of the hand requires good grasp (pun intended) of its entire anatomy, so in this page we will look at all of the above structures.The bones of the hand can be divided into three distinct groups:Each group of hand bones is important in its own right, but the In the meantime, it would be beneficial for you to take a closer look at the carpal bones with the following learning materials, because they are the most difficult hand bones to get your head around.The thenar muscles are capable of various thumb movements; abduction, adduction, flexion, and opposition.
All the hand arteries originate from two main, larger ones; the The radial and ulnar arteries give off the following specific branches in the hand:Understanding all the above arterial arches and anastomoses is easiest through a visual approach, therefore the video given below will clarify the entire neurovasculature of the hand.The veins are very similar to the arteries, so if you understand the latter then the drainage pattern of the hand will be a piece of cake.
The complex abilities of the hand are part of what make humans unique. Adequate strength forms the basis for normal hand function. The hand bones can be divided into three categories: carpal bones, metacarpals and phalanges. In addition to reading this article, be s… The hand can be considered in four segments: Fingers: Digits that extend from the palm of the hand, the fingers make it possible for humans to grip the smallest of objects. Our website services, content, and products are for informational purposes only. Hands are capable of a wide variety of functions, including gross and fine motor movements. Jun 18, 2020 - Explore Azriel Heuman's board "Hand Anatomy" on Pinterest. Few structures of the human anatomy are as unique as the hand. This ability provides us with the dexterity to use tools. All rights reserved. Nerves of the Hand. It also gives us a forceful grip. Fine motor movements enable us to perform delicate tasks, such as holding small objects or performing detailed work. Each bone is connected by a series of ligaments.Although fully functional hands can accomplish great things, they are susceptible to a number of ailments, including:© 2005-2020 Healthline Media a Red Ventures Company. (The thumb does not have a middle phalanx.) The structures that form and move the hand require proper alignment and control in order for normal hand function to occur.
Distal Phalanges The five cylindrical bones that form the tips of the fingers and thumb. The hand also must be coordinated to perform fine motor tasks with precision. Healthline Media does not provide medical advice, diagnosis, or treatment. Watch the video mentioned above to learn all about the Essentially, the veins of the hand drain into either the The anatomy of the hand is incomplete without understanding the Take this specially designed quiz to test your knowledge about the hand and wrist. The hand needs to be mobile in order to position the fingers and thumb.
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