We noted you are experiencing viewing problems
-
Check with your IT department that JWPlatform, JWPlayer and Amazon AWS & CloudFront are not being blocked by your network. The relevant domains are *.jwplatform.com, *.jwpsrv.com, *.jwpcdn.com, jwpltx.com, jwpsrv.a.ssl.fastly.net, *.amazonaws.com and *.cloudfront.net. The relevant ports are 80 and 443.
-
Check the following talk links to see which ones work correctly:
Auto Mode
HTTP Progressive Download Send us your results from the above test links at access@hstalks.com and we will contact you with further advice on troubleshooting your viewing problems. -
No luck yet? More tips for troubleshooting viewing issues
-
Contact HST Support access@hstalks.com
-
Please review our troubleshooting guide for tips and advice on resolving your viewing problems.
-
For additional help, please don't hesitate to contact HST support access@hstalks.com
We hope you have enjoyed this limited-length demo
This is a limited length demo talk; you may
login or
review methods of
obtaining more access.
Printable Handouts
Navigable Slide Index
- Introduction
- Outline
- Part 1: The Forearm
- Bones of the forearm
- Radius
- Radial shaft
- Distal radius
- Ulna
- Proximal ulna
- Radiograph of the elbow
- Ulnar shaft
- Distal ulna
- Distal radioulnar joint
- Interosseus membrane
- Muscles of the forearm: anterior compartment
- Muscles of the forearm (anterior compartment): superficial layer
- Muscles of the forearm (anterior compartment): intermediate layer
- Muscles of the forearm (anterior compartment): deep layer
- Muscles of the forearm: posterior compartment
- Muscles of the forearm (posterior compartment): superficial layer (1)
- Muscles of the forearm (posterior compartment): superficial layer (2)
- Muscles of the forearm (posterior compartment): deep layer
- Pronation and supination
- Vascular supply of the forearm: arteries (anterior compartment)
- Vascular supply of the forearm: arteries
- Vascular supply of the forearm: arteries (radial artery)
- Vascular supply of the forearm: arteries (brachial artery)
- Vascular supply of the forearm: arteries (ulnar artery)
- Vascular supply of the forearm: arteries (common interosseous artery)
- Vascular supply of the forearm: veins
- Innervation of the forearm
- Innervation of the forearm: median nerve
- Innervation of the forearm: ulnar nerve
- Innervation of the forearm: radial nerve
- Innervation of the forearm: radial nerve branches
- Acknowledgements
- Financial disclosures
Topics Covered
- Bones of the forearm
- Joints of the forearm
- Muscles of the forearm
- Vascular supply of the forearm
- Innervation of the forearm
Talk Citation
Apaydin, N. (2026, February 26). Anatomy of the forearm and hand: the forearm [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved April 18, 2026, from https://doi.org/10.69645/YWWS1925.Export Citation (RIS)
Publication History
- Published on February 26, 2026
Financial Disclosures
- There are no commercial relationships to disclose.
Anatomy of the forearm and hand: the forearm
Published on February 26, 2026
32 min
Other Talks in the Series: Introduction to Gross Anatomy for Medicine
Transcript
Please wait while the transcript is being prepared...
0:00
Hello. I'm Nihal Apaydin
from Ankara University,
Faculty of Medicine,
and I'm a full
professor of anatomy
in the Department of Anatomy.
I'm going to talk
about the anatomy of
the forearm and the hand
in this presentation.
0:16
I have split my talk
into two parts.
In the first part, I'm going
to be covering the forearm
and give you information
about the bones,
joints, muscles, and
movements of the forearm.
I will briefly mention about
the vascular supply and
innervation of the forearm.
In the second part,
I will be covering
the wrist and hand, and
talk about the bones,
joints, muscles, and
movements of the hand.
After this, I will
explain the structures in
the hand, just like
carpal tunnel,
and then I will be
briefly mentioning about
the vascular supply and
innervation of the hand.
At the final part
of the second part,
I will summarize the
surface anatomy of
the forearm and the hand,
and I will try to provide you
an anatomical overview of
clinical cases related with
forearm, wrist, and the hand,
and I will finalize my
talk with a conclusion.
1:15
Now, let's get started with
the first part, the forearm.
1:20
The forearm is the part
of the upper limb that
extends between the
elbow and wrist joints.
The bone framework
of the forearm
consists of two parallel bones,
the laterally located radius
and the medially located ulna.
The radius is small proximally,
where it articulates
with the humerus,
and wider distally, where
it forms the wrist joint
with the carpal
bones of the hand.
The ulna is large proximally
and small distally.
Just reverse all
those for radius.
Proximal and distal
radioulnar joints
allows the radius to swing
over the adjacent ulna
resulting in pronation and
supination of the hand.
The radius and
ulna are linked by
an interosseous membrane
along most of their length.
This interosseous membrane and
the lateral intermuscular septum
and also the attachment
of the deep fascia
along the posterior
border of the ulna
divides the forearm into
anterior and posterior
compartments as in the arm.
The muscles, major
nerves, and vessel supply
all pass through
each compartment,
which we will discuss later.
The radius consists of